Special Features in Powder Preparation, Pressing, and Sintering of Uranium Dioxide

Special Features in Powder Preparation, Pressing, and Sintering of Uranium Dioxide

Abstract Nuclear ceramic grade UO 2 powders are usually prepared by the wet chemical ammonium diuranate route. The powders are pressed and sintered before incorporation into nuclear fuel assemblies. The processing is complex at all stages and the specifications are stringent. In powder preparation,...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Materials and manufacturing processes 2000-08, Vol.15 (5), p.679-693
Hauptverfasser: Balakrishna, Palanki, Narasimha Murty, B., Chakraborthy, K. P., Jayaraj, R. N., Ganguly, C.
Format: Artikel
Sprache:eng
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 693
container_issue 5
container_start_page 679
container_title Materials and manufacturing processes
container_volume 15
creator Balakrishna, Palanki
Narasimha Murty, B.
Chakraborthy, K. P.
Jayaraj, R. N.
Ganguly, C.
description Abstract Nuclear ceramic grade UO 2 powders are usually prepared by the wet chemical ammonium diuranate route. The powders are pressed and sintered before incorporation into nuclear fuel assemblies. The processing is complex at all stages and the specifications are stringent. In powder preparation, slow addition of the precipitating reagent at a low temperature is recommended. The conditions for the drying of the precipitate, calcination and reduction are chosen to result in an agglomerate free, fine and porous powder that does not require milling or binder addition and is capable of being compacted and sintered to desired density with a homogeneous microstructure. The pressing conditions are chosen to give compacts that are free from defects such as cracking, chipping and end-capping. Sintering conditions are such that desintering, bloating, weathering and nitriding are avoided. Some insights that have been gained in powder preparation, pressing and sintering are presented in this paper. The relationship between powder characteristics and pressing and sintering properties is described.
doi_str_mv 10.1080/10426910008913013
format Article
fullrecord <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_crossref_primary_10_1080_10426910008913013</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>27734523</sourcerecordid><originalsourceid>FETCH-LOGICAL-c406t-32801e6ef6ff9caf6d4dd040731534de04efa92d638f0f24e67a07123bd1cdba3</originalsourceid><addsrcrecordid>eNqFkE1Lw0AQhoMoWKs_wNuePDU6-5FNA15ErQoFi7XnsM3OykqajbsJbf-9W-qtYE8zwzzPMLxJck3hlsIY7igIJgsKAOOCcqD8JBnQjLOUiTw7jX3cpxEQ58lFCN8AtMhpNkg-5i1WVtVkgqrrPQZiGzJza42ezDy2yqvOuma0G0KwzdeIqEaTuW069HEkzpCFV43tV-TJuo3VeJmcGVUHvPqrw2Qxef58fE2n7y9vjw_TtBIgu5SzMVCUaKQxRaWM1EJrEJDz-LfQCAKNKpiWfGzAMIEyV5BTxpeaVnqp-DC52d9tvfvpMXTlyoYK61o16PpQcpFxmUl-FGR5Hlm2A-kerLwLwaMpW29Xym9LCuUu5vIg5ujc7x3bGOdXau18rctObWvnTQymsvGT__T8qH5gld2m479sL5SI</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>27734523</pqid></control><display><type>article</type><title>Special Features in Powder Preparation, Pressing, and Sintering of Uranium Dioxide</title><source>Taylor &amp; Francis Journals Complete</source><creator>Balakrishna, Palanki ; Narasimha Murty, B. ; Chakraborthy, K. P. ; Jayaraj, R. N. ; Ganguly, C.</creator><creatorcontrib>Balakrishna, Palanki ; Narasimha Murty, B. ; Chakraborthy, K. P. ; Jayaraj, R. N. ; Ganguly, C.</creatorcontrib><description>Abstract Nuclear ceramic grade UO 2 powders are usually prepared by the wet chemical ammonium diuranate route. The powders are pressed and sintered before incorporation into nuclear fuel assemblies. The processing is complex at all stages and the specifications are stringent. In powder preparation, slow addition of the precipitating reagent at a low temperature is recommended. The conditions for the drying of the precipitate, calcination and reduction are chosen to result in an agglomerate free, fine and porous powder that does not require milling or binder addition and is capable of being compacted and sintered to desired density with a homogeneous microstructure. The pressing conditions are chosen to give compacts that are free from defects such as cracking, chipping and end-capping. Sintering conditions are such that desintering, bloating, weathering and nitriding are avoided. Some insights that have been gained in powder preparation, pressing and sintering are presented in this paper. The relationship between powder characteristics and pressing and sintering properties is described.</description><identifier>ISSN: 1042-6914</identifier><identifier>EISSN: 1532-2475</identifier><identifier>DOI: 10.1080/10426910008913013</identifier><language>eng</language><publisher>Taylor &amp; Francis Group</publisher><ispartof>Materials and manufacturing processes, 2000-08, Vol.15 (5), p.679-693</ispartof><rights>Copyright Taylor &amp; Francis Group, LLC 2000</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c406t-32801e6ef6ff9caf6d4dd040731534de04efa92d638f0f24e67a07123bd1cdba3</citedby><cites>FETCH-LOGICAL-c406t-32801e6ef6ff9caf6d4dd040731534de04efa92d638f0f24e67a07123bd1cdba3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.tandfonline.com/doi/pdf/10.1080/10426910008913013$$EPDF$$P50$$Ginformaworld$$H</linktopdf><linktohtml>$$Uhttps://www.tandfonline.com/doi/full/10.1080/10426910008913013$$EHTML$$P50$$Ginformaworld$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,59620,60409</link.rule.ids></links><search><creatorcontrib>Balakrishna, Palanki</creatorcontrib><creatorcontrib>Narasimha Murty, B.</creatorcontrib><creatorcontrib>Chakraborthy, K. P.</creatorcontrib><creatorcontrib>Jayaraj, R. N.</creatorcontrib><creatorcontrib>Ganguly, C.</creatorcontrib><title>Special Features in Powder Preparation, Pressing, and Sintering of Uranium Dioxide</title><title>Materials and manufacturing processes</title><description>Abstract Nuclear ceramic grade UO 2 powders are usually prepared by the wet chemical ammonium diuranate route. The powders are pressed and sintered before incorporation into nuclear fuel assemblies. The processing is complex at all stages and the specifications are stringent. In powder preparation, slow addition of the precipitating reagent at a low temperature is recommended. The conditions for the drying of the precipitate, calcination and reduction are chosen to result in an agglomerate free, fine and porous powder that does not require milling or binder addition and is capable of being compacted and sintered to desired density with a homogeneous microstructure. The pressing conditions are chosen to give compacts that are free from defects such as cracking, chipping and end-capping. Sintering conditions are such that desintering, bloating, weathering and nitriding are avoided. Some insights that have been gained in powder preparation, pressing and sintering are presented in this paper. The relationship between powder characteristics and pressing and sintering properties is described.</description><issn>1042-6914</issn><issn>1532-2475</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2000</creationdate><recordtype>article</recordtype><recordid>eNqFkE1Lw0AQhoMoWKs_wNuePDU6-5FNA15ErQoFi7XnsM3OykqajbsJbf-9W-qtYE8zwzzPMLxJck3hlsIY7igIJgsKAOOCcqD8JBnQjLOUiTw7jX3cpxEQ58lFCN8AtMhpNkg-5i1WVtVkgqrrPQZiGzJza42ezDy2yqvOuma0G0KwzdeIqEaTuW069HEkzpCFV43tV-TJuo3VeJmcGVUHvPqrw2Qxef58fE2n7y9vjw_TtBIgu5SzMVCUaKQxRaWM1EJrEJDz-LfQCAKNKpiWfGzAMIEyV5BTxpeaVnqp-DC52d9tvfvpMXTlyoYK61o16PpQcpFxmUl-FGR5Hlm2A-kerLwLwaMpW29Xym9LCuUu5vIg5ujc7x3bGOdXau18rctObWvnTQymsvGT__T8qH5gld2m479sL5SI</recordid><startdate>20000801</startdate><enddate>20000801</enddate><creator>Balakrishna, Palanki</creator><creator>Narasimha Murty, B.</creator><creator>Chakraborthy, K. P.</creator><creator>Jayaraj, R. N.</creator><creator>Ganguly, C.</creator><general>Taylor &amp; Francis Group</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope><scope>8BQ</scope></search><sort><creationdate>20000801</creationdate><title>Special Features in Powder Preparation, Pressing, and Sintering of Uranium Dioxide</title><author>Balakrishna, Palanki ; Narasimha Murty, B. ; Chakraborthy, K. P. ; Jayaraj, R. N. ; Ganguly, C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c406t-32801e6ef6ff9caf6d4dd040731534de04efa92d638f0f24e67a07123bd1cdba3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2000</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Balakrishna, Palanki</creatorcontrib><creatorcontrib>Narasimha Murty, B.</creatorcontrib><creatorcontrib>Chakraborthy, K. P.</creatorcontrib><creatorcontrib>Jayaraj, R. N.</creatorcontrib><creatorcontrib>Ganguly, C.</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>METADEX</collection><jtitle>Materials and manufacturing processes</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Balakrishna, Palanki</au><au>Narasimha Murty, B.</au><au>Chakraborthy, K. P.</au><au>Jayaraj, R. N.</au><au>Ganguly, C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Special Features in Powder Preparation, Pressing, and Sintering of Uranium Dioxide</atitle><jtitle>Materials and manufacturing processes</jtitle><date>2000-08-01</date><risdate>2000</risdate><volume>15</volume><issue>5</issue><spage>679</spage><epage>693</epage><pages>679-693</pages><issn>1042-6914</issn><eissn>1532-2475</eissn><abstract>Abstract Nuclear ceramic grade UO 2 powders are usually prepared by the wet chemical ammonium diuranate route. The powders are pressed and sintered before incorporation into nuclear fuel assemblies. The processing is complex at all stages and the specifications are stringent. In powder preparation, slow addition of the precipitating reagent at a low temperature is recommended. The conditions for the drying of the precipitate, calcination and reduction are chosen to result in an agglomerate free, fine and porous powder that does not require milling or binder addition and is capable of being compacted and sintered to desired density with a homogeneous microstructure. The pressing conditions are chosen to give compacts that are free from defects such as cracking, chipping and end-capping. Sintering conditions are such that desintering, bloating, weathering and nitriding are avoided. Some insights that have been gained in powder preparation, pressing and sintering are presented in this paper. The relationship between powder characteristics and pressing and sintering properties is described.</abstract><pub>Taylor &amp; Francis Group</pub><doi>10.1080/10426910008913013</doi><tpages>15</tpages></addata></record>
fulltext fulltext
identifier ISSN: 1042-6914
ispartof Materials and manufacturing processes, 2000-08, Vol.15 (5), p.679-693
issn 1042-6914
1532-2475
language eng
recordid cdi_crossref_primary_10_1080_10426910008913013
source Taylor & Francis Journals Complete
title Special Features in Powder Preparation, Pressing, and Sintering of Uranium Dioxide
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-31T15%3A17%3A03IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Special%20Features%20in%20Powder%20Preparation,%20Pressing,%20and%20Sintering%20of%20Uranium%20Dioxide&rft.jtitle=Materials%20and%20manufacturing%20processes&rft.au=Balakrishna,%20Palanki&rft.date=2000-08-01&rft.volume=15&rft.issue=5&rft.spage=679&rft.epage=693&rft.pages=679-693&rft.issn=1042-6914&rft.eissn=1532-2475&rft_id=info:doi/10.1080/10426910008913013&rft_dat=%3Cproquest_cross%3E27734523%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=27734523&rft_id=info:pmid/&rfr_iscdi=true