Mechanical Behavior of High Temperature Composites

1994 ◽  
Author(s):  
Terry R. Barnett ◽  
H. S. Starrett
Keyword(s):  
High Temperature ◽  
Mechanical Behavior

Application of TEM to Deformation, Wear, and Fracture of Ceramics

1974 ◽  
Vol 32 ◽  
pp. 472-473
Author(s):  
B. J. Hockey
Keyword(s):  
Wear Resistance ◽  
High Temperature ◽  
Mechanical Behavior ◽  
Brittle Materials ◽  
High Temperature Strength ◽  
Wide Range ◽  
Corrosive Environments ◽  
Further Development

Ceramics, such as Al2O3 and SiC have numerous current and potential uses in applications where high temperature strength, hardness, and wear resistance are required often in corrosive environments. These materials are, however, highly anisotropic and brittle, so that their mechanical behavior is often unpredictable. The further development of these materials will require a better understanding of the basic mechanisms controlling deformation, wear, and fracture.The purpose of this talk is to describe applications of TEM to the study of the deformation, wear, and fracture of Al2O3. Similar studies are currently being conducted on SiC and the techniques involved should be applicable to a wide range of hard, brittle materials.

The Mechanics and Mechanical Behavior of High-Temperature Intermetallic Matrix Composites

2000 ◽  
Author(s):  
Ronald Gibala ◽  
Amit K. Ghosh ◽  
David J. Srolovitz ◽  
John W. Holmes ◽  
Noboru Kikuchi
Keyword(s):  
High Temperature ◽  
Mechanical Behavior ◽  
Matrix Composites ◽  
Intermetallic Matrix ◽  
Intermetallic Matrix Composites

A Method for Predicting the Behavior of Plastics at Different Temperatures

2014 ◽  
Vol 1039 ◽  
pp. 107-111
Author(s):  
Yang Chen ◽  
Gui Qin Li ◽  
Bin Ruan ◽  
Xiao Yuan ◽  
Hong Bo Li
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Constitutive Model ◽  
Research And Development ◽  
Mechanical Behavior ◽  
Plastic Material ◽  
Different Temperatures ◽  
Plastic Parts

The mechanical behavior of plastic material is dramatically sensitive to temperature. An method is proposed to predict the mechanical behavior of plastics for cars, ranging from low-temperature low temperature ≤-40°C to high temperature ≥80°C. It dominates the behavior of plastic material based on improved constitutive model in which the parameters adjusted by a series of tests under different temperatures. The method is validated with test and establishes the basis for research and development of plastic parts for automobile as well.

scholarly journals High temperature quasistatic and dynamic mechanical behavior of interconnected 3D carbon nanotube structures

Carbon ◽  
2019 ◽  
Vol 142 ◽  
pp. 291-299 ◽  
Author(s):  
Sanjit Bhowmick ◽  
Sehmus Ozden ◽  
Rafael A. Bizão ◽  
Leonardo Dantas Machado ◽  
S.A. Syed Asif ◽  
...  
Keyword(s):  
High Temperature ◽  
Carbon Nanotube ◽  
Mechanical Behavior ◽  
Dynamic Mechanical ◽  
Dynamic Mechanical Behavior

Oxidation Behavior of Amorphous Nano-Si3N4 Powders

2014 ◽  
Vol 602-603 ◽  
pp. 367-370 ◽  
Author(s):  
Jiang Bo Wen ◽  
Sheng Huang ◽  
Hong Jie Wang
Keyword(s):  
High Temperature ◽  
Partial Pressure ◽  
Mechanical Behavior ◽  
Low Temperatures ◽  
Traditional Method ◽  
Oxidation Behavior ◽  
Oxidation Process ◽  
Composite Ceramic ◽  
Intergranular Phase ◽  
Sintering Additives

The traditional method preparing Si3N4/Si2N2O composite ceramic is to sinter α-Si3N4 powder with additives at relatively high temperatures. But the intergranular phase transformed from the sintering additives can degrade the high-temperature mechanical behavior. Amorphous nanoSi3N4 is used to fabricate Si3N4/Si2N2O composite ceramic by its oxidation and nitridation without sintering additives at low temperatures. Thus, it is essential to study the oxidation behavior and mechanism of amorphous nanoSi3N4. Amorphous nanoSi3N4 powders were oxidized in different atmospheres, at varying temperatures and for various different length of time. The oxidation process and products was analyzed by means of XRD, TGA and FTIR. The results showed that amorphous nanoSi3N4 could be oxidized into SiO2 from 600°C to 1300°C. Below 1300°C, the oxidation became serious as the temperature increased. Besides, the longer the oxidation time and the lager the ratio of O2/N2 partial pressure was, the deeper the oxidation level was. When the temperature was above 1300°C, amorphous nanoSi3N4 was completely oxidized into SiO2.

Fracture and Fatigue of Niobium Silicide Alloys

2008 ◽  
Vol 1128 ◽  
Author(s):  
David M. Herman ◽  
Bernard P Bewlay ◽  
Laurent Cretegny ◽  
Richard DiDomizio ◽  
John Lewandowski
Keyword(s):  
High Temperature ◽  
Mechanical Behavior ◽  
Refractory Metal ◽  
Fatigue Behavior ◽  
Metal Phase ◽  
Metal Silicide ◽  
Alloy Composite ◽  
Niobium Silicide ◽  
Composite Properties

AbstractThe fracture and fatigue behavior of refractory metal silicide alloys/composites is significantly affected by the mechanical behavior of the refractory metal phase. This paper reviews some of the balance of properties obtained in the alloys/composites based on the Nb-Si system. Since some of the alloy/composite properties are dominated by the behavior of the refractory metal phase, the paper begins with a review of data on monolithic Nb and its alloys. This is followed by presentation of results obtained on Nb-Si alloys/composites and a comparison to behavior of some other high temperature systems.

Single-step aging treatment for a precipitation-strengthened Ni-based alloy and its influence on high-temperature mechanical behavior

2019 ◽  
Vol 162 ◽  
pp. 416-420 ◽  
Author(s):  
Kinga A. Unocic ◽  
Dongwon Shin ◽  
Xiahan Sang ◽  
Ercan Cakmak ◽  
Peter F. Tortorelli
Keyword(s):  
High Temperature ◽  
Mechanical Behavior ◽  
Aging Treatment ◽  
Single Step

High temperature mechanical behavior of Al2O3–MgO–C refractories for steelmaking use

2011 ◽  
Vol 37 (5) ◽  
pp. 1473-1483 ◽  
Author(s):  
Leonardo Musante ◽  
Vanesa Muñoz ◽  
Marcelo H. Labadie ◽  
Analía G. Tomba Martinez
Keyword(s):  
High Temperature ◽  
Mechanical Behavior
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