{"id":849,"date":"2020-09-27T08:40:29","date_gmt":"2020-09-27T13:40:29","guid":{"rendered":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/?p=849"},"modified":"2020-10-10T08:56:25","modified_gmt":"2020-10-10T13:56:25","slug":"ksn-vikrant-rl-grosso-re-garcia-k-hattar-sj-dillon-et-al-ultrahigh-temperature-in-situ-transmission-electron-microscopy-based-bicrystal-coble-creep-in-zirconia-i-nanowire-growth-and-interfaci","status":"publish","type":"post","link":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/2020\/09\/27\/ksn-vikrant-rl-grosso-re-garcia-k-hattar-sj-dillon-et-al-ultrahigh-temperature-in-situ-transmission-electron-microscopy-based-bicrystal-coble-creep-in-zirconia-i-nanowire-growth-and-interfaci\/","title":{"rendered":"KSN Vikrant, RL Grosso, RE Garc\u00eda, K Hattar, SJ Dillon et al. “Ultrahigh Temperature in situ Transmission Electron Microscopy based Bicrystal Coble Creep in Zirconia I: Nanowire Growth and Interfacial Diffusivity.” Acta Materialia 199:530-541, 2020."},"content":{"rendered":"

KSN Vikrant, RL Grosso, L. Feng, ENS Muccillo, DNF Muche, GS Jawaharram, CM Barr, AM Monterrosa, RHR Castro, RE Garc\u00eda, K Hattar, SJ Dillon\u00a0 “Ultrahigh Temperature in situ Transmission Electron Microscopy based Bicrystal Coble Creep in Zirconia I: Nanowire Growth and Interfacial Diffusivity.<\/em>” Acta Materialia<\/strong> 199:530-541, 2020.\u00a0https:\/\/doi.org\/10.1016\/j.actamat.2020.08.069<\/a><\/p>\n

Abstract<\/h3>\n

This work demonstrates novel\u00a0<\/span>in situ<\/em>\u00a0<\/span>transmission electron microscopy-based microscale single grain boundary Coble creep experiments used to grow nanowires through a solid-state process in cubic ZrO2<\/sub>\u00a0<\/span>between \u2248 1200 \u00b0C and \u2248 2100 \u00b0C. Experiments indicate Coble creep drives the formation of nanowires from asperity contacts during tensile displacement, which is confirmed by phase field simulations. The experiments also facilitate efficient measurement of grain boundary diffusivity and surface diffusivity. 10 mol% Sc2<\/sub>O3<\/sub>\u00a0<\/span>doped ZrO2<\/sub>\u00a0<\/span>is found expressions for the cation grain boundary \u00a0and surface diffusivity.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

KSN Vikrant, RL Grosso, L. Feng, ENS Muccillo, DNF Muche, GS Jawaharram,…<\/p>\n

Continue reading “KSN Vikrant, RL Grosso, RE Garc\u00eda, K Hattar, SJ Dillon et al. “Ultrahigh Temperature in situ Transmission Electron Microscopy based Bicrystal Coble Creep in Zirconia I: Nanowire Growth and Interfacial Diffusivity.” Acta Materialia 199:530-541, 2020.”<\/span>…<\/a><\/div>\n
Continue reading \"KSN Vikrant, RL Grosso, RE Garc\u00eda, K Hattar, SJ Dillon et al. “Ultrahigh Temperature in situ Transmission Electron Microscopy based Bicrystal Coble Creep in Zirconia I: Nanowire Growth and Interfacial Diffusivity.” Acta Materialia 199:530-541, 2020.\"<\/span>…<\/a><\/div>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"jetpack_seo_schema_type":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[45],"tags":[76,59,10,14,48,77,15],"class_list":["post-849","post","type-post","status-publish","format-standard","hentry","category-papers","tag-charged-grain-boundaries","tag-dislocations","tag-grain-boundaries","tag-microstructures","tag-phase-field","tag-plasticity","tag-properties","entry"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/peeeSR-dH","jetpack_likes_enabled":true,"jetpack-related-posts":[{"id":854,"url":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/2020\/10\/01\/rl-grosso-ksn-vikrant-l-feng-ens-muccillo-dnf-muche-gs-jawaharram-cm-barr-am-monterrosa-rhr-castro-re-garcia-k-hattar-sj-dillon-ultrahigh-temperature-in-situ-transmission-electron-microsco\/","url_meta":{"origin":849,"position":0},"title":"RL Grosso, KSN Vikrant, RE Garc\u00eda, K Hattar, SJ Dillon, et al. “Ultrahigh Temperature in situ Transmission Electron Microscopy based Bicrystal Coble Creep in Zirconia II: Interfacial Thermodynamics and Transport Mechanisms.” Acta Materialia, 200:1008-1021, 2020.","author":"redwing","date":"10\/01\/2020","format":false,"excerpt":"RL Grosso KSN Vikrant, L Feng, ENS Muccillo, DNF Muche, GS Jawaharram, CM Barr, AM Monterrosa, RHR Castro, RE Garc\u00eda, K Hattar, SJ Dillon \"Ultrahigh Temperature in situ Transmission Electron Microscopy based Bicrystal Coble Creep in Zirconia II: Interfacial Thermodynamics and Transport Mechanisms.\"\u00a0Acta Materialia, 200:1008-1021, 2020.\u00a0https:\/\/doi.org\/10.1016\/j.actamat.2020.08.070 Abstract This work uses\u2026","rel":"","context":"In "Papers"","block_context":{"text":"Papers","link":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/category\/papers\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1004,"url":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/2026\/08\/01\/cm-bishop-ksn-vikrant-re-garcia-ferroelectric-grain-boundary-complexion-transitions-acta-materialia-293-121043-2025\/","url_meta":{"origin":849,"position":1},"title":"CM Bishop, KSN Vikrant, RE Garc\u00eda “Ferroelectric grain boundary complexion transitions.” Acta Materialia 293: 121043, 2025.","author":"redwing","date":"08\/01\/2026","format":false,"excerpt":"CM Bishop, KSN Vikrant, RE Garc\u00eda \"Ferroelectric grain boundary complexion transitions.\" Acta Materialia 293: 121043, 2025. https:\/\/doi.org\/10.1016\/j.actamat.2025.121043 Abstract By starting from equilibrium volumetric and\u00a0interfacial properties\u00a0of\u00a0ferroelectric materials, a thermodynamically-consistent phase field framework incorporating polarization and\u00a0space charge\u00a0for\u00a0polycrystalline\u00a0ferroelectrics is developed. Building on Cahn\u2019s\u00a0critical point\u00a0wetting variational analysis, a series of planar\u00a0[001]\u00a0tilt\u00a0grain boundaries in tetragonal\u2026","rel":"","context":"In "Papers"","block_context":{"text":"Papers","link":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/category\/papers\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":775,"url":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/2018\/10\/09\/h-wang-xl-phuah-j-li-tb-holland-ksn-vikrant-l-qiang-cs-hellberg-n-bernstein-re-garcia-a-mukherjee-x-zhang-h-wang-key-microstructural-characteristics-in-flash-sintered-3ysz-critical-for-e\/","url_meta":{"origin":849,"position":2},"title":"H Wang, XL Phuah, J Li, TB Holland, KSN Vikrant, L Qiang, CS Hellberg, N Bernstein, RE Garc\u00eda, A Mukherjee, X Zhang, H Wang. “Key microstructural characteristics in flash sintered 3YSZ critical for enhanced sintering process.” Ceramics International. 45:1251-1257, 2019.","author":"redwing","date":"10\/09\/2018","format":false,"excerpt":"H Wang, XL Phuah, J Li, TB Holland, KSN Vikrant, L Qiang, CS Hellberg, N Bernstein, RE Garc\u00eda, A Mukherjee, X Zhang, H Wang. \"Key microstructural characteristics in flash sintered 3YSZ critical for enhanced sintering process.\" Ceramics International. 45:1251-1257, 2019. https:\/\/doi.org\/10.1016\/j.ceramint.2018.10.007 Abstract To explore the fundamental flash sintering mechanisms in\u2026","rel":"","context":"In "Papers"","block_context":{"text":"Papers","link":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/category\/papers\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":851,"url":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/2020\/09\/27\/ksn-vikrant-w-rheinheimer-h-sternlicht-m-baurer-re-garcia-electrochemically-driven-abnormal-grain-growth-in-ionic-ceramics-acta-materialia-200-720-734-2020\/","url_meta":{"origin":849,"position":3},"title":"KSN Vikrant, W Rheinheimer, H Sternlicht, M B\u00e4urer, RE Garc\u00eda “Electrochemically-driven abnormal grain growth in ionic ceramics.” Acta Materialia 200: 720-734, 2020.","author":"redwing","date":"09\/27\/2020","format":false,"excerpt":"KSN Vikrant, W Rheinheimer, H Sternlicht, M B\u00e4urer, RE Garc\u00eda \"Electrochemically-driven abnormal grain growth in ionic ceramics.\" Acta Materialia 200: 720-734, 2020. \u00a0https:\/\/doi.org\/10.1016\/j.actamat.2020.08.027 \u00a0 Abstract A combined theoretical and experimental analysis was performed to understand the effects of extrinsic ionic species and point defects on the microstructural evolution of ionic\u2026","rel":"","context":"In "Papers"","block_context":{"text":"Papers","link":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/category\/papers\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1020,"url":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/2026\/08\/01\/c-liu-c-shen-j-shen-b-k-tsai-y-zhang-y-chen-y-zhang-k-xu-d-paul-j-lu-h-li-z-hu-x-sheng-a-wazeer-s-zhou-r-e-garcia-x-zhang-h-wang-in-situ-studies-on-microstructural-evolution-and-the\/","url_meta":{"origin":849,"position":4},"title":"C Liu, C Shen, J Shen, B K Tsai, Y Zhang, Y Chen, Y Zhang, K Xu, D Paul, J Lu, H Li, Z Hu, X Sheng, A Wazeer, S Zhou, R E Garc\u00eda, X Zhang, H Wang “In situ Studies on Microstructural Evolution and Thermally Activated Plasticity of (Co, Cu, Mg, Ni, Zn) O High-Entropy Oxide.” Acta Materialia, 122212, 2026.","author":"redwing","date":"08\/01\/2026","format":false,"excerpt":"C Liu, C Shen, J Shen, B K Tsai, Y Zhang, Y Chen, Y Zhang, K Xu, D Paul, J Lu, H Li, Z Hu, X Sheng, A Wazeer, S Zhou, R E Garc\u00eda, X Zhang, H Wang \"In situ Studies on Microstructural Evolution and Thermally Activated Plasticity of (Co,\u2026","rel":"","context":"In "Papers"","block_context":{"text":"Papers","link":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/category\/papers\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1013,"url":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/2026\/08\/01\/ksn-vikrant-re-garcia-electrically-charged-dislocations-in-ionic-ceramics-acta-materialia-121778-2025\/","url_meta":{"origin":849,"position":5},"title":"KSN Vikrant, RE Garc\u00eda “Electrically charged dislocations in ionic ceramics.” Acta Materialia, 121778, 2025.","author":"redwing","date":"08\/01\/2026","format":false,"excerpt":"KSN Vikrant, RE Garc\u00eda \"Electrically charged dislocations in ionic ceramics.\" Acta Materialia, 121778, 2025. https:\/\/doi.org\/10.1016\/j.actamat.2025.121778 Abstract A thermodynamically consistent phase field theory describing coupled electrical, chemical, and mechanical effects on charged dislocations in ionic ceramics is presented. The formulation results in a generalized multiphysical Peach\u2013K\u00f6hler force, establishing a critical electro-chemo-mechanical\u2026","rel":"","context":"In "Papers"","block_context":{"text":"Papers","link":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/category\/papers\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"_links":{"self":[{"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/posts\/849","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/comments?post=849"}],"version-history":[{"count":1,"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/posts\/849\/revisions"}],"predecessor-version":[{"id":850,"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/posts\/849\/revisions\/850"}],"wp:attachment":[{"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/media?parent=849"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/categories?post=849"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/tags?post=849"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}