Crystallization of Fine, Chemically Prepared Lead Lanthanum Zirconate Titanate Powders at Low Temperature
Fine, homogeneous lead lanthanum zirconate titanate (PLZT) powder prepared by the hydrolysis of an aqueous nitrate solution with ammonia gas exhibits high reactivity when calcined. The minimum temperature for crystal formation in PLZT is 400°C. The kinetics of crystallization between 400° and 600°C...
Gespeichert in:
| Veröffentlicht in: | Journal of the American Ceramic Society 1990-01, Vol.73 (1), p.31-34 |
|---|---|
| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 34 |
|---|---|
| container_issue | 1 |
| container_start_page | 31 |
| container_title | Journal of the American Ceramic Society |
| container_volume | 73 |
| creator | Yoshikawa, Yoshio Tsuzuki, Kaoru |
| description | Fine, homogeneous lead lanthanum zirconate titanate (PLZT) powder prepared by the hydrolysis of an aqueous nitrate solution with ammonia gas exhibits high reactivity when calcined. The minimum temperature for crystal formation in PLZT is 400°C. The kinetics of crystallization between 400° and 600°C are studied isothermally by XRD. The isothermal crystallization process is best fitted to a first‐order equation derived for a random, nucleation‐controlled system on a large number of small particles with an activation energy of 297 kJ/mol. Characterization of the powder by XRD line‐broadening and BET surface‐area examination in the range 400° to 500°C shows a microstructure consisting of ∼20‐nm subunits agglomerated into ∼60‐nm particles. Each subunit evidently generates a single nucleus, which grows within that subunit. |
| doi_str_mv | 10.1111/j.1151-2916.1990.tb05085.x |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_osti_</sourceid><recordid>TN_cdi_osti_scitechconnect_6786161</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>25608486</sourcerecordid><originalsourceid>FETCH-LOGICAL-c5351-5b632253bc3f017311290fffcc8a20a4ced27befc309b48113b201d51dda9b873</originalsourceid><addsrcrecordid>eNqVUU2P0zAQjRBIlIX_YC2IE-n6o04cDkiraLtsFcEeipC4WI4zUV2SuNiO2vLrcUi1B2744LE1b968mZck1wQvSTw3-xg4SWlBsiUpCrwMNeZY8OXpWbIg_JJ6niwwxjTNBcUvk1fe7-OXFGK1SEzpzj6orjO_VTB2QLZFazPAB1TuoDc6Zs7o0cFBOWhQBSpeagg7NYw9-mGctoMKgLYmqL-PR3tswHmkAqrsEW2hP4BTYXTwOnnRqs7Dm0u8Sr6t77bl57T6ev9Q3lap5izq5XXGKOWs1qzFJGeE0AK3bau1UBSrlYaG5jW0muGiXglCWE0xaThpGlXUImdXyfXMa30w0msTQO-izAF0kFkuMpKRCHo_gw7O_hrBB9kbr6Hr1AB29JLyDIuVyCLw7T_AvR3dEAeQUZhgORd4ovs4o7Sz3jto5cGZXrmzJFhORsm9nIySkxtyMkpejJKnWPzu0kL5uO_WqUEb_8SQiVhIaYR9mmFH08H5PxrIzW15xyaR6UxgfIDTE4FyP-Na4iDy-5d7WZSbdYVzITfsD4vDtfs</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1298375801</pqid></control><display><type>article</type><title>Crystallization of Fine, Chemically Prepared Lead Lanthanum Zirconate Titanate Powders at Low Temperature</title><source>Periodicals Index Online</source><source>Wiley Online Library All Journals</source><creator>Yoshikawa, Yoshio ; Tsuzuki, Kaoru</creator><creatorcontrib>Yoshikawa, Yoshio ; Tsuzuki, Kaoru</creatorcontrib><description>Fine, homogeneous lead lanthanum zirconate titanate (PLZT) powder prepared by the hydrolysis of an aqueous nitrate solution with ammonia gas exhibits high reactivity when calcined. The minimum temperature for crystal formation in PLZT is 400°C. The kinetics of crystallization between 400° and 600°C are studied isothermally by XRD. The isothermal crystallization process is best fitted to a first‐order equation derived for a random, nucleation‐controlled system on a large number of small particles with an activation energy of 297 kJ/mol. Characterization of the powder by XRD line‐broadening and BET surface‐area examination in the range 400° to 500°C shows a microstructure consisting of ∼20‐nm subunits agglomerated into ∼60‐nm particles. Each subunit evidently generates a single nucleus, which grows within that subunit.</description><identifier>ISSN: 0002-7820</identifier><identifier>EISSN: 1551-2916</identifier><identifier>DOI: 10.1111/j.1151-2916.1990.tb05085.x</identifier><identifier>CODEN: JACTAW</identifier><language>eng</language><publisher>Oxford, UK: Blackwell Publishing Ltd</publisher><subject>360201 -- Ceramics, Cermets, & Refractories-- Preparation & Fabrication ; 400101 -- Activation, Nuclear Reaction, Radiometric & Radiochemical Procedures ; ACTIVATION ENERGY ; Applied sciences ; AQUEOUS SOLUTIONS ; Building materials. Ceramics. Glasses ; Ceramic industries ; Chemical industry and chemicals ; CHEMICAL PREPARATION ; CHEMICAL REACTIONS ; COHERENT SCATTERING ; CRYSTALLIZATION ; DECOMPOSITION ; DIFFRACTION ; DISPERSIONS ; ELEMENTS ; ENERGY ; Exact sciences and technology ; HYDROLYSIS ; INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY ; LANTHANUM ; LEAD ; lead lanthanum zirconate titanate ; LOW TEMPERATURE ; LYSIS ; MATERIALS SCIENCE ; METALS ; MIXTURES ; OXYGEN COMPOUNDS ; PHASE TRANSFORMATIONS ; POWDERS ; RARE EARTHS ; SCATTERING ; sintering ; SOLUTIONS ; SOLVOLYSIS ; SYNTHESIS ; Technical ceramics ; TITANATES ; TITANIUM COMPOUNDS ; TRANSITION ELEMENT COMPOUNDS ; TRANSITION ELEMENTS 360202 -- Ceramics, Cermets, & Refractories-- Structure & Phase Studies ; X-RAY DIFFRACTION ; ZIRCONIUM</subject><ispartof>Journal of the American Ceramic Society, 1990-01, Vol.73 (1), p.31-34</ispartof><rights>1990 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c5351-5b632253bc3f017311290fffcc8a20a4ced27befc309b48113b201d51dda9b873</citedby><cites>FETCH-LOGICAL-c5351-5b632253bc3f017311290fffcc8a20a4ced27befc309b48113b201d51dda9b873</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fj.1151-2916.1990.tb05085.x$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fj.1151-2916.1990.tb05085.x$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>230,314,780,784,885,1416,4022,27868,27922,27923,27924,45573,45574</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=6815122$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/biblio/6786161$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Yoshikawa, Yoshio</creatorcontrib><creatorcontrib>Tsuzuki, Kaoru</creatorcontrib><title>Crystallization of Fine, Chemically Prepared Lead Lanthanum Zirconate Titanate Powders at Low Temperature</title><title>Journal of the American Ceramic Society</title><description>Fine, homogeneous lead lanthanum zirconate titanate (PLZT) powder prepared by the hydrolysis of an aqueous nitrate solution with ammonia gas exhibits high reactivity when calcined. The minimum temperature for crystal formation in PLZT is 400°C. The kinetics of crystallization between 400° and 600°C are studied isothermally by XRD. The isothermal crystallization process is best fitted to a first‐order equation derived for a random, nucleation‐controlled system on a large number of small particles with an activation energy of 297 kJ/mol. Characterization of the powder by XRD line‐broadening and BET surface‐area examination in the range 400° to 500°C shows a microstructure consisting of ∼20‐nm subunits agglomerated into ∼60‐nm particles. Each subunit evidently generates a single nucleus, which grows within that subunit.</description><subject>360201 -- Ceramics, Cermets, & Refractories-- Preparation & Fabrication</subject><subject>400101 -- Activation, Nuclear Reaction, Radiometric & Radiochemical Procedures</subject><subject>ACTIVATION ENERGY</subject><subject>Applied sciences</subject><subject>AQUEOUS SOLUTIONS</subject><subject>Building materials. Ceramics. Glasses</subject><subject>Ceramic industries</subject><subject>Chemical industry and chemicals</subject><subject>CHEMICAL PREPARATION</subject><subject>CHEMICAL REACTIONS</subject><subject>COHERENT SCATTERING</subject><subject>CRYSTALLIZATION</subject><subject>DECOMPOSITION</subject><subject>DIFFRACTION</subject><subject>DISPERSIONS</subject><subject>ELEMENTS</subject><subject>ENERGY</subject><subject>Exact sciences and technology</subject><subject>HYDROLYSIS</subject><subject>INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY</subject><subject>LANTHANUM</subject><subject>LEAD</subject><subject>lead lanthanum zirconate titanate</subject><subject>LOW TEMPERATURE</subject><subject>LYSIS</subject><subject>MATERIALS SCIENCE</subject><subject>METALS</subject><subject>MIXTURES</subject><subject>OXYGEN COMPOUNDS</subject><subject>PHASE TRANSFORMATIONS</subject><subject>POWDERS</subject><subject>RARE EARTHS</subject><subject>SCATTERING</subject><subject>sintering</subject><subject>SOLUTIONS</subject><subject>SOLVOLYSIS</subject><subject>SYNTHESIS</subject><subject>Technical ceramics</subject><subject>TITANATES</subject><subject>TITANIUM COMPOUNDS</subject><subject>TRANSITION ELEMENT COMPOUNDS</subject><subject>TRANSITION ELEMENTS 360202 -- Ceramics, Cermets, & Refractories-- Structure & Phase Studies</subject><subject>X-RAY DIFFRACTION</subject><subject>ZIRCONIUM</subject><issn>0002-7820</issn><issn>1551-2916</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1990</creationdate><recordtype>article</recordtype><sourceid>K30</sourceid><recordid>eNqVUU2P0zAQjRBIlIX_YC2IE-n6o04cDkiraLtsFcEeipC4WI4zUV2SuNiO2vLrcUi1B2744LE1b968mZck1wQvSTw3-xg4SWlBsiUpCrwMNeZY8OXpWbIg_JJ6niwwxjTNBcUvk1fe7-OXFGK1SEzpzj6orjO_VTB2QLZFazPAB1TuoDc6Zs7o0cFBOWhQBSpeagg7NYw9-mGctoMKgLYmqL-PR3tswHmkAqrsEW2hP4BTYXTwOnnRqs7Dm0u8Sr6t77bl57T6ev9Q3lap5izq5XXGKOWs1qzFJGeE0AK3bau1UBSrlYaG5jW0muGiXglCWE0xaThpGlXUImdXyfXMa30w0msTQO-izAF0kFkuMpKRCHo_gw7O_hrBB9kbr6Hr1AB29JLyDIuVyCLw7T_AvR3dEAeQUZhgORd4ovs4o7Sz3jto5cGZXrmzJFhORsm9nIySkxtyMkpejJKnWPzu0kL5uO_WqUEb_8SQiVhIaYR9mmFH08H5PxrIzW15xyaR6UxgfIDTE4FyP-Na4iDy-5d7WZSbdYVzITfsD4vDtfs</recordid><startdate>199001</startdate><enddate>199001</enddate><creator>Yoshikawa, Yoshio</creator><creator>Tsuzuki, Kaoru</creator><general>Blackwell Publishing Ltd</general><general>Blackwell</general><general>American Ceramic Society</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>HDMVH</scope><scope>K30</scope><scope>PAAUG</scope><scope>PAWHS</scope><scope>PAWZZ</scope><scope>PAXOH</scope><scope>PBHAV</scope><scope>PBQSW</scope><scope>PBYQZ</scope><scope>PCIWU</scope><scope>PCMID</scope><scope>PCZJX</scope><scope>PDGRG</scope><scope>PDWWI</scope><scope>PETMR</scope><scope>PFVGT</scope><scope>PGXDX</scope><scope>PIHIL</scope><scope>PISVA</scope><scope>PJCTQ</scope><scope>PJTMS</scope><scope>PLCHJ</scope><scope>PMHAD</scope><scope>PNQDJ</scope><scope>POUND</scope><scope>PPLAD</scope><scope>PQAPC</scope><scope>PQCAN</scope><scope>PQCMW</scope><scope>PQEME</scope><scope>PQHKH</scope><scope>PQMID</scope><scope>PQNCT</scope><scope>PQNET</scope><scope>PQSCT</scope><scope>PQSET</scope><scope>PSVJG</scope><scope>PVMQY</scope><scope>PZGFC</scope><scope>7QQ</scope><scope>8FD</scope><scope>JG9</scope><scope>OTOTI</scope></search><sort><creationdate>199001</creationdate><title>Crystallization of Fine, Chemically Prepared Lead Lanthanum Zirconate Titanate Powders at Low Temperature</title><author>Yoshikawa, Yoshio ; Tsuzuki, Kaoru</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5351-5b632253bc3f017311290fffcc8a20a4ced27befc309b48113b201d51dda9b873</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1990</creationdate><topic>360201 -- Ceramics, Cermets, & Refractories-- Preparation & Fabrication</topic><topic>400101 -- Activation, Nuclear Reaction, Radiometric & Radiochemical Procedures</topic><topic>ACTIVATION ENERGY</topic><topic>Applied sciences</topic><topic>AQUEOUS SOLUTIONS</topic><topic>Building materials. Ceramics. Glasses</topic><topic>Ceramic industries</topic><topic>Chemical industry and chemicals</topic><topic>CHEMICAL PREPARATION</topic><topic>CHEMICAL REACTIONS</topic><topic>COHERENT SCATTERING</topic><topic>CRYSTALLIZATION</topic><topic>DECOMPOSITION</topic><topic>DIFFRACTION</topic><topic>DISPERSIONS</topic><topic>ELEMENTS</topic><topic>ENERGY</topic><topic>Exact sciences and technology</topic><topic>HYDROLYSIS</topic><topic>INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY</topic><topic>LANTHANUM</topic><topic>LEAD</topic><topic>lead lanthanum zirconate titanate</topic><topic>LOW TEMPERATURE</topic><topic>LYSIS</topic><topic>MATERIALS SCIENCE</topic><topic>METALS</topic><topic>MIXTURES</topic><topic>OXYGEN COMPOUNDS</topic><topic>PHASE TRANSFORMATIONS</topic><topic>POWDERS</topic><topic>RARE EARTHS</topic><topic>SCATTERING</topic><topic>sintering</topic><topic>SOLUTIONS</topic><topic>SOLVOLYSIS</topic><topic>SYNTHESIS</topic><topic>Technical ceramics</topic><topic>TITANATES</topic><topic>TITANIUM COMPOUNDS</topic><topic>TRANSITION ELEMENT COMPOUNDS</topic><topic>TRANSITION ELEMENTS 360202 -- Ceramics, Cermets, & Refractories-- Structure & Phase Studies</topic><topic>X-RAY DIFFRACTION</topic><topic>ZIRCONIUM</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yoshikawa, Yoshio</creatorcontrib><creatorcontrib>Tsuzuki, Kaoru</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Periodicals Index Online Segment 15</collection><collection>Periodicals Index Online</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - West</collection><collection>Primary Sources Access (Plan D) - International</collection><collection>Primary Sources Access & Build (Plan A) - MEA</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - Midwest</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - Northeast</collection><collection>Primary Sources Access (Plan D) - Southeast</collection><collection>Primary Sources Access (Plan D) - North Central</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - Southeast</collection><collection>Primary Sources Access (Plan D) - South Central</collection><collection>Primary Sources Access & Build (Plan A) - UK / I</collection><collection>Primary Sources Access (Plan D) - Canada</collection><collection>Primary Sources Access (Plan D) - EMEALA</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - North Central</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - South Central</collection><collection>Primary Sources Access & Build (Plan A) - International</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - International</collection><collection>Primary Sources Access (Plan D) - West</collection><collection>Periodicals Index Online Segments 1-50</collection><collection>Primary Sources Access (Plan D) - APAC</collection><collection>Primary Sources Access (Plan D) - Midwest</collection><collection>Primary Sources Access (Plan D) - MEA</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - Canada</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - UK / I</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - EMEALA</collection><collection>Primary Sources Access & Build (Plan A) - APAC</collection><collection>Primary Sources Access & Build (Plan A) - Canada</collection><collection>Primary Sources Access & Build (Plan A) - West</collection><collection>Primary Sources Access & Build (Plan A) - EMEALA</collection><collection>Primary Sources Access (Plan D) - Northeast</collection><collection>Primary Sources Access & Build (Plan A) - Midwest</collection><collection>Primary Sources Access & Build (Plan A) - North Central</collection><collection>Primary Sources Access & Build (Plan A) - Northeast</collection><collection>Primary Sources Access & Build (Plan A) - South Central</collection><collection>Primary Sources Access & Build (Plan A) - Southeast</collection><collection>Primary Sources Access (Plan D) - UK / I</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - APAC</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - MEA</collection><collection>Ceramic Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>OSTI.GOV</collection><jtitle>Journal of the American Ceramic Society</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yoshikawa, Yoshio</au><au>Tsuzuki, Kaoru</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Crystallization of Fine, Chemically Prepared Lead Lanthanum Zirconate Titanate Powders at Low Temperature</atitle><jtitle>Journal of the American Ceramic Society</jtitle><date>1990-01</date><risdate>1990</risdate><volume>73</volume><issue>1</issue><spage>31</spage><epage>34</epage><pages>31-34</pages><issn>0002-7820</issn><eissn>1551-2916</eissn><coden>JACTAW</coden><abstract>Fine, homogeneous lead lanthanum zirconate titanate (PLZT) powder prepared by the hydrolysis of an aqueous nitrate solution with ammonia gas exhibits high reactivity when calcined. The minimum temperature for crystal formation in PLZT is 400°C. The kinetics of crystallization between 400° and 600°C are studied isothermally by XRD. The isothermal crystallization process is best fitted to a first‐order equation derived for a random, nucleation‐controlled system on a large number of small particles with an activation energy of 297 kJ/mol. Characterization of the powder by XRD line‐broadening and BET surface‐area examination in the range 400° to 500°C shows a microstructure consisting of ∼20‐nm subunits agglomerated into ∼60‐nm particles. Each subunit evidently generates a single nucleus, which grows within that subunit.</abstract><cop>Oxford, UK</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1111/j.1151-2916.1990.tb05085.x</doi><tpages>4</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0002-7820 |
| ispartof | Journal of the American Ceramic Society, 1990-01, Vol.73 (1), p.31-34 |
| issn | 0002-7820 1551-2916 |
| language | eng |
| recordid | cdi_osti_scitechconnect_6786161 |
| source | Periodicals Index Online; Wiley Online Library All Journals |
| subjects | 360201 -- Ceramics, Cermets, & Refractories-- Preparation & Fabrication 400101 -- Activation, Nuclear Reaction, Radiometric & Radiochemical Procedures ACTIVATION ENERGY Applied sciences AQUEOUS SOLUTIONS Building materials. Ceramics. Glasses Ceramic industries Chemical industry and chemicals CHEMICAL PREPARATION CHEMICAL REACTIONS COHERENT SCATTERING CRYSTALLIZATION DECOMPOSITION DIFFRACTION DISPERSIONS ELEMENTS ENERGY Exact sciences and technology HYDROLYSIS INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY LANTHANUM LEAD lead lanthanum zirconate titanate LOW TEMPERATURE LYSIS MATERIALS SCIENCE METALS MIXTURES OXYGEN COMPOUNDS PHASE TRANSFORMATIONS POWDERS RARE EARTHS SCATTERING sintering SOLUTIONS SOLVOLYSIS SYNTHESIS Technical ceramics TITANATES TITANIUM COMPOUNDS TRANSITION ELEMENT COMPOUNDS TRANSITION ELEMENTS 360202 -- Ceramics, Cermets, & Refractories-- Structure & Phase Studies X-RAY DIFFRACTION ZIRCONIUM |
| title | Crystallization of Fine, Chemically Prepared Lead Lanthanum Zirconate Titanate Powders at Low Temperature |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-12T20%3A51%3A05IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_osti_&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Crystallization%20of%20Fine,%20Chemically%20Prepared%20Lead%20Lanthanum%20Zirconate%20Titanate%20Powders%20at%20Low%20Temperature&rft.jtitle=Journal%20of%20the%20American%20Ceramic%20Society&rft.au=Yoshikawa,%20Yoshio&rft.date=1990-01&rft.volume=73&rft.issue=1&rft.spage=31&rft.epage=34&rft.pages=31-34&rft.issn=0002-7820&rft.eissn=1551-2916&rft.coden=JACTAW&rft_id=info:doi/10.1111/j.1151-2916.1990.tb05085.x&rft_dat=%3Cproquest_osti_%3E25608486%3C/proquest_osti_%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1298375801&rft_id=info:pmid/&rfr_iscdi=true |