Temperature dependence of the plastic flow stress of covalent crystals
A model is presented to explain the steep temperature dependence of the plastic flow stress τ c (T), of highly covalent crystals of α-Al 2 O 3 , Si and GaAs. The model assumes high and steep Peierls potentials: V p (x) = Px 2 + Qx n (n > 2) for x < a/2, a being the period. The kink pair format...
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| Veröffentlicht in: | Philosophical magazine. A, Physics of condensed matter. Defects and mechanical properties Physics of condensed matter. Defects and mechanical properties, 1995-02, Vol.71 (2), p.389-397 |
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| container_end_page | 397 |
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| container_issue | 2 |
| container_start_page | 389 |
| container_title | Philosophical magazine. A, Physics of condensed matter. Defects and mechanical properties |
| container_volume | 71 |
| creator | Suzuki, Takayoshi Koizumi, Hirokazu Kirchner, Helmut O. K. |
| description | A model is presented to explain the steep temperature dependence of the plastic flow stress τ
c
(T), of highly covalent crystals of α-Al
2
O
3
, Si and GaAs. The model assumes high and steep Peierls potentials: V
p
(x) = Px
2
+ Qx
n
(n > 2) for x < a/2, a being the period. The kink pair formation energy ΔH(τ) is calculated from the elastic interaction energy of a trapezoidal kink pair. The calculation predicts narrow and abrupt kink pairs. The activation energy ΔH(τ) obtained describes the experimental relation log τ
c
= A - BT with constants A and B. The results suggest that the kink pair formation is the rate controlling process of dislocation motion in covalent crystals. |
| doi_str_mv | 10.1080/01418619508244363 |
| format | Article |
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c
(T), of highly covalent crystals of α-Al
2
O
3
, Si and GaAs. The model assumes high and steep Peierls potentials: V
p
(x) = Px
2
+ Qx
n
(n > 2) for x < a/2, a being the period. The kink pair formation energy ΔH(τ) is calculated from the elastic interaction energy of a trapezoidal kink pair. The calculation predicts narrow and abrupt kink pairs. The activation energy ΔH(τ) obtained describes the experimental relation log τ
c
= A - BT with constants A and B. The results suggest that the kink pair formation is the rate controlling process of dislocation motion in covalent crystals.</description><identifier>ISSN: 0141-8610</identifier><identifier>EISSN: 1460-6992</identifier><identifier>DOI: 10.1080/01418619508244363</identifier><identifier>CODEN: PMAADG</identifier><language>eng</language><publisher>London: Taylor & Francis Group</publisher><subject>Condensed matter: structure, mechanical and thermal properties ; Deformation and plasticity (including yield, ductility, and superplasticity) ; Exact sciences and technology ; Mechanical and acoustical properties of condensed matter ; Mechanical properties of solids ; Physics</subject><ispartof>Philosophical magazine. A, Physics of condensed matter. Defects and mechanical properties, 1995-02, Vol.71 (2), p.389-397</ispartof><rights>Copyright Taylor & Francis Group, LLC 1995</rights><rights>1995 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c355t-1cba734ba0fa2fa4cc2d84bee160d27bf385c4d052cf6a069289e4d8b1568b163</citedby><cites>FETCH-LOGICAL-c355t-1cba734ba0fa2fa4cc2d84bee160d27bf385c4d052cf6a069289e4d8b1568b163</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.tandfonline.com/doi/pdf/10.1080/01418619508244363$$EPDF$$P50$$Ginformaworld$$H</linktopdf><linktohtml>$$Uhttps://www.tandfonline.com/doi/full/10.1080/01418619508244363$$EHTML$$P50$$Ginformaworld$$H</linktohtml><link.rule.ids>314,776,780,27846,27901,27902,59620,60409</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=3561912$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Suzuki, Takayoshi</creatorcontrib><creatorcontrib>Koizumi, Hirokazu</creatorcontrib><creatorcontrib>Kirchner, Helmut O. K.</creatorcontrib><title>Temperature dependence of the plastic flow stress of covalent crystals</title><title>Philosophical magazine. A, Physics of condensed matter. Defects and mechanical properties</title><description>A model is presented to explain the steep temperature dependence of the plastic flow stress τ
c
(T), of highly covalent crystals of α-Al
2
O
3
, Si and GaAs. The model assumes high and steep Peierls potentials: V
p
(x) = Px
2
+ Qx
n
(n > 2) for x < a/2, a being the period. The kink pair formation energy ΔH(τ) is calculated from the elastic interaction energy of a trapezoidal kink pair. The calculation predicts narrow and abrupt kink pairs. The activation energy ΔH(τ) obtained describes the experimental relation log τ
c
= A - BT with constants A and B. The results suggest that the kink pair formation is the rate controlling process of dislocation motion in covalent crystals.</description><subject>Condensed matter: structure, mechanical and thermal properties</subject><subject>Deformation and plasticity (including yield, ductility, and superplasticity)</subject><subject>Exact sciences and technology</subject><subject>Mechanical and acoustical properties of condensed matter</subject><subject>Mechanical properties of solids</subject><subject>Physics</subject><issn>0141-8610</issn><issn>1460-6992</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1995</creationdate><recordtype>article</recordtype><sourceid>K30</sourceid><recordid>eNp1kE9LAzEUxIMoWKsfwNuCXldf_myaBS9SrAoFL_W8ZLMvuGW7WZOspd_elFYv4uXN4f1mBoaQawp3FBTcAxVUSVoWoJgQXPITMqFCQi7Lkp2Syf6fJwDOyUUIawCgM4AJWaxwM6DXcfSYNThg32BvMHM2ix-YDZ0OsTWZ7dw2C9FjCPuXcV-6wz5mxu9C1F24JGc2CV4ddUreF0-r-Uu-fHt-nT8uc8OLIubU1HrGRa3Bama1MIY1StSIVELDZrXlqjCigYIZKzXIkqkSRaNqWsh0JJ-Sm0Pu4N3niCFWazf6PlVWlJWKAnBZJooeKONdCB5tNfh2o_2uolDt56r-zJU8t8dkHYzurNe9acOvkReJpixhDwes7a3zG711vmuqqHed8z8e_n_LN9UdfF4</recordid><startdate>19950201</startdate><enddate>19950201</enddate><creator>Suzuki, Takayoshi</creator><creator>Koizumi, Hirokazu</creator><creator>Kirchner, Helmut O. 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K.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c355t-1cba734ba0fa2fa4cc2d84bee160d27bf385c4d052cf6a069289e4d8b1568b163</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1995</creationdate><topic>Condensed matter: structure, mechanical and thermal properties</topic><topic>Deformation and plasticity (including yield, ductility, and superplasticity)</topic><topic>Exact sciences and technology</topic><topic>Mechanical and acoustical properties of condensed matter</topic><topic>Mechanical properties of solids</topic><topic>Physics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Suzuki, Takayoshi</creatorcontrib><creatorcontrib>Koizumi, Hirokazu</creatorcontrib><creatorcontrib>Kirchner, Helmut O. K.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Periodicals Index Online Segment 12</collection><collection>Periodicals Index Online Segment 32</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><jtitle>Philosophical magazine. A, Physics of condensed matter. Defects and mechanical properties</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Suzuki, Takayoshi</au><au>Koizumi, Hirokazu</au><au>Kirchner, Helmut O. K.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Temperature dependence of the plastic flow stress of covalent crystals</atitle><jtitle>Philosophical magazine. A, Physics of condensed matter. Defects and mechanical properties</jtitle><date>1995-02-01</date><risdate>1995</risdate><volume>71</volume><issue>2</issue><spage>389</spage><epage>397</epage><pages>389-397</pages><issn>0141-8610</issn><eissn>1460-6992</eissn><coden>PMAADG</coden><abstract>A model is presented to explain the steep temperature dependence of the plastic flow stress τ
c
(T), of highly covalent crystals of α-Al
2
O
3
, Si and GaAs. The model assumes high and steep Peierls potentials: V
p
(x) = Px
2
+ Qx
n
(n > 2) for x < a/2, a being the period. The kink pair formation energy ΔH(τ) is calculated from the elastic interaction energy of a trapezoidal kink pair. The calculation predicts narrow and abrupt kink pairs. The activation energy ΔH(τ) obtained describes the experimental relation log τ
c
= A - BT with constants A and B. The results suggest that the kink pair formation is the rate controlling process of dislocation motion in covalent crystals.</abstract><cop>London</cop><pub>Taylor & Francis Group</pub><doi>10.1080/01418619508244363</doi><tpages>9</tpages></addata></record> |
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| identifier | ISSN: 0141-8610 |
| ispartof | Philosophical magazine. A, Physics of condensed matter. Defects and mechanical properties, 1995-02, Vol.71 (2), p.389-397 |
| issn | 0141-8610 1460-6992 |
| language | eng |
| recordid | cdi_proquest_journals_1298100369 |
| source | Taylor & Francis Journals Complete; Periodicals Index Online |
| subjects | Condensed matter: structure, mechanical and thermal properties Deformation and plasticity (including yield, ductility, and superplasticity) Exact sciences and technology Mechanical and acoustical properties of condensed matter Mechanical properties of solids Physics |
| title | Temperature dependence of the plastic flow stress of covalent crystals |
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