| High-temperature mechanical properties of Al/sub 2/O/sub 3 //Ti/sub 3/SiC/sub 2/ multilayer ceramics |
| Zan, Q.F.
; Wang, C.
; Dong, L.M.
; Wang, C.A.
; Huang, Y.
|
| 2010-05-10
; 2010-05-10
|
| 会议名称 | Key Engineering Materials
; 3rd International Conference on High-Performance Ceramics (CICC-3)
; Shenzhen, China
; INSPEC
|
| 关键词 | Experimental/ alumina
bending strength
ceramics
creep fracture
delamination
diffusion creep
elastic moduli
high-temperature effects
multilayers
silicon compounds
slip
stress relaxation
titanium compounds/ high-temperature mechanical properties
multilayer ceramics
structural ceramics
elastic modulus
stress relaxation
room temperature
multilayer composites
stress exponent
activation energy
monolithic ceramics
interface diffusion creep
dislocation movement creep
grain delamination
grain boundary sliding
bending strength
20 to 1300 degC
Al/sub 2/O/sub 3/-Ti/sub 3/SiC/sub 2// A6825 Mechanical and acoustical properties of solid surfaces and interfaces
A8140L Deformation, plasticity and creep
A6220F Deformation and plasticity
A6220H Creep
A8140J Elasticity and anelasticity
A6220D Elasticity, elastic constants
A6240 Anelasticity, internal friction and mechanical resonances
A6170L Slip, creep, internal friction and other indirect evidence of dislocations
A8140N Fatigue, embrittlement, and fracture
A6220M Fatigue, brittleness, fracture, and cracks
A6865 Low-dimensional structures: growth, structure and nonelectronic properties/ temperature 2.93E+02 to 1.57E+03 K/ Al2O3-Ti3SiC2/int Ti3SiC2/int Al2O3/int Al2/int Ti3/int Al/int C2/int O3/int Si/int Ti/int C/int O/int Ti3SiC2/ss Ti3/ss C2/ss Si/ss Ti/ss C/ss Al2O3/bin Al2/bin Al/bin O3/bin O/bin
|
| 中文摘要 | The high-temperature mechanical properties were very important to structural materials, especially structural ceramics. Hence, the strength, elastic modulus, stress relaxation and creep behavior of the multilayer materials at elevated temperature were studied in this paper. According to the curves of mechanical properties varieties with temperature risen from room-temperature to 1300 degrees C, the multilayer materials could remain relatively high mechanical properties until 1150 degrees C. Otherwise, the creep function of the multilayer composites was also determined, in which the stress exponent was 1.4 and activation energy was 204 kJ/mol. By contrasting to the monolithic ceramics of Al /sub 2/O/sub 3/ and Ti/sub 3/SiC/sub 2/, the main creep mechanisms include: interface diffusion creep (in Al/sub 2/O /sub 3/ layers), dislocation movement creep, grain delamination and sliding (in Ti/sub 3/SiC/sub 2/ layers). |
| 会议录出版者 | Trans Tech Publications
; Switzerland
|
| 语种 | 英语
; 英语
|
| 内容类型 | 会议论文
|
| 源URL | [http://hdl.handle.net/123456789/18824]  |
| 专题 | 清华大学
|
推荐引用方式
GB/T 7714 |
Zan, Q.F.,Wang, C.,Dong, L.M.,et al. High-temperature mechanical properties of Al/sub 2/O/sub 3 //Ti/sub 3/SiC/sub 2/ multilayer ceramics[C]. 见:Key Engineering Materials, 3rd International Conference on High-Performance Ceramics (CICC-3), Shenzhen, China, INSPEC.
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