TY - GEN
T1 - Tribology in superplastic forming processing of 3Y-TZP/Al2O 3 ceramic at elevated temperatures
AU - Wang, F.
AU - Zhang, K. F.
AU - Han, W. B.
PY - 2007
Y1 - 2007
N2 - Superplastic forming processing of ceramic materials at high temperatures and high pressure puts forward very high requests to moulds and lubricants, at which conditions seeking for appropriate lubricants is one of important preconditions in the superplastic forming of ceramic materials. Using ring compressive testing, lubricities of hexagonal boron nitride in superplastic compressive forming processing of 3Y-TZP/Al2O3 ceramic composite at elevated temperatures were investigated. Theoretical curves of friction factor were drawn according to upper bound method. Ring compressive tests were adopted at temperature of 1400°C-1600°C The results indicate that when BN is used, friction factor is about 0.4, meanwhile friction factor don't have great changes with higher temperature and increasing strain rate. X-ray diffraction shows that under high temperature and high pressure no boron nitride converts to cubic phase, which remains at room temperature.
AB - Superplastic forming processing of ceramic materials at high temperatures and high pressure puts forward very high requests to moulds and lubricants, at which conditions seeking for appropriate lubricants is one of important preconditions in the superplastic forming of ceramic materials. Using ring compressive testing, lubricities of hexagonal boron nitride in superplastic compressive forming processing of 3Y-TZP/Al2O3 ceramic composite at elevated temperatures were investigated. Theoretical curves of friction factor were drawn according to upper bound method. Ring compressive tests were adopted at temperature of 1400°C-1600°C The results indicate that when BN is used, friction factor is about 0.4, meanwhile friction factor don't have great changes with higher temperature and increasing strain rate. X-ray diffraction shows that under high temperature and high pressure no boron nitride converts to cubic phase, which remains at room temperature.
KW - Ceramic superplasticity
KW - Friction and lubrication
KW - High-temperature lubricant
KW - Ring compressive test
UR - https://www.scopus.com/pages/publications/38449122323
U2 - 10.4028/0-87849-435-9.507
DO - 10.4028/0-87849-435-9.507
M3 - 会议稿件
AN - SCOPUS:38449122323
SN - 0878494359
SN - 9780878494354
T3 - Materials Science Forum
SP - 507
EP - 512
BT - Superplasticity in Advanced Materials - ICSAM 2006 - Proceedings of the 9th International Conference on Superplasticity in Advanced Materials
PB - Trans Tech Publications Ltd
T2 - 9th International Conference on Superplasticity in Advanced Materials, ICSAM 2006
Y2 - 23 June 2006 through 26 June 2006
ER -