skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Joining of yttria-tetragonal stabilized zirconia polycrystals using nanocrystals

Abstract

Superplastic flow has been successfully used to join fully dense 3 mol% Y{sub 2}O{sub 3}-tetragonal ZrO{sub 2} polycrystals (Y-TZP) at temperatures as low as 1,350 C, a temperature at which direct diffusional bonding would be unlikely to produce a strong, pore-free joint. The objective of the present work was to determine whether bonding temperatures could be further reduced. To achieve lower bonding temperatures, the authors have investigated the bonding of conventional Y-TZP in which a nanocrystalline Y-TZP with a 20-nm grain size is used as the interlayer between two pieces of 0.3 {micro}m grain sizes Y-TZP. Little is known about the deformation of fully dense nanocrystalline Y-TZP, but recent work indicates that above a threshold stress, the principal deformation mechanism would be grain boundary sliding that results in superplastic flow. Questions on the deformation mechanism in the nanocrystalline Y-TZP are being addressed as part of a larger investigation of high-temperature compressive creep behavior, currently in progress.

Authors:
; ;  [1];  [2];  [3]
  1. Univ. de Sevilla (Spain). Dept. de Fisica Materia Condensada
  2. Technion-Israel Inst. of Tech., Haifa (Israel). Dept. of Materials Engineering
  3. Univ. de Extremadura, Badajoz (Spain). Dept. de Fisica
Publication Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
691328
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Journal Article
Journal Name:
Scripta Materialia
Additional Journal Information:
Journal Volume: 41; Journal Issue: 5; Other Information: PBD: 6 Aug 1999
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; BONDING; ZIRCONIUM OXIDES; YTTRIUM OXIDES; POLYCRYSTALS; TEMPERATURE RANGE 1000-4000 K; PLASTICITY; INTERFACES; STRAINS

Citation Formats

Gutierrez-Mora, F., Dominguez-Rodriguez, A., Routbort, J.L., Chaim, R., and Guiberteau, F. Joining of yttria-tetragonal stabilized zirconia polycrystals using nanocrystals. United States: N. p., 1999. Web. doi:10.1016/S1359-6462(99)00190-6.
Gutierrez-Mora, F., Dominguez-Rodriguez, A., Routbort, J.L., Chaim, R., & Guiberteau, F. Joining of yttria-tetragonal stabilized zirconia polycrystals using nanocrystals. United States. doi:10.1016/S1359-6462(99)00190-6.
Gutierrez-Mora, F., Dominguez-Rodriguez, A., Routbort, J.L., Chaim, R., and Guiberteau, F. Fri . "Joining of yttria-tetragonal stabilized zirconia polycrystals using nanocrystals". United States. doi:10.1016/S1359-6462(99)00190-6.
@article{osti_691328,
title = {Joining of yttria-tetragonal stabilized zirconia polycrystals using nanocrystals},
author = {Gutierrez-Mora, F. and Dominguez-Rodriguez, A. and Routbort, J.L. and Chaim, R. and Guiberteau, F.},
abstractNote = {Superplastic flow has been successfully used to join fully dense 3 mol% Y{sub 2}O{sub 3}-tetragonal ZrO{sub 2} polycrystals (Y-TZP) at temperatures as low as 1,350 C, a temperature at which direct diffusional bonding would be unlikely to produce a strong, pore-free joint. The objective of the present work was to determine whether bonding temperatures could be further reduced. To achieve lower bonding temperatures, the authors have investigated the bonding of conventional Y-TZP in which a nanocrystalline Y-TZP with a 20-nm grain size is used as the interlayer between two pieces of 0.3 {micro}m grain sizes Y-TZP. Little is known about the deformation of fully dense nanocrystalline Y-TZP, but recent work indicates that above a threshold stress, the principal deformation mechanism would be grain boundary sliding that results in superplastic flow. Questions on the deformation mechanism in the nanocrystalline Y-TZP are being addressed as part of a larger investigation of high-temperature compressive creep behavior, currently in progress.},
doi = {10.1016/S1359-6462(99)00190-6},
journal = {Scripta Materialia},
number = 5,
volume = 41,
place = {United States},
year = {1999},
month = {8}
}