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forms is lower than that of the conventional triaxial rheological. Key words: Dagangshan dam side; hard brittle diabase; triaxial confining pressure rheological tests; rheological fracture strength... of hard brittle diabase in different stress paths were carried out by using triaxial rheological testing machine. The diabase specimens used in the tests were all from field sampling in Dagangshan dam......
Quasi-static and Dynamic Compressive Fracture Behavior of SiCf/SiC Composites高晓菊1,2,成来飞1,YAN Dongming2,LI Liangjun11. Science and Technology on Thermostructural Composite Materials Laboratory... behavior of twodimensional SiC fiber-reinforced SiC composites(2D-SiCf/Si C), their compressive behavior at room temperature was investigated at a strain rate from 10-4 to 104 /s, and the fracture surfaces......
microstructure formed by using Ag-based filler alloys. The tensile strength of the joint sample was as low as about 60 MPa and the fracture occurred along the brittle IMCs. In case of the Ti- and Zr-based filler... Formation of interfacial brittle phases sigma phase and IMC in hybrid titanium-to-stainless steel joint Min Ku LEE, Jung Gu LEE, Jong Keuk LEE, Sung Mo HONG, Sang Hoon LEE, Jin Ju PARK, Jae Woo......
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of 304HCstainless steel was analyzed and the mathematical model of resistance to deformationwas established. The microstructure, inclusion and fracture surface were studied byusing the method of microstructure... precipitated from austenite phase during cooling. The Cu rich chem-ical compounds are brittle substance such as Cu2S, Cu2O and ε-Cu etc. Key words:304HC stainless steel; hot ductility; brittle compounds......
J. Cent. South Univ. Technol. (2008) 15: 344-349 DOI: 10.1007/s11771-008-0065-0 Piezoelectric responses of brittle rock mass containing quartz to static stress and exploding stress wave... piezoelectric crystals. It cannot be denied that the intensity and frequency of the electromagnetic emission(EME) caused by certain rock fracture correlate to the fact that the kind of rock itself......
Factors Influencing High Temperature Thermo Plasticity of BNbRE Steel at the Third Brittle Zone Chen Lin1,Liu Yuyan1,Zong Wei1,Tian Zhongliang1,Ren Huiping1,Gao Michao1,Bao Xirong1 (1.Material... in the practiced production, the effect of two factors, i. e. deformation temperature, deformation velocity, on thermo plasticity of BNbRE steel at the third brittle zone was quantitatively......
formula, and the validity of these two formulas was evaluated. The obtained value was about Ktip =1 MPa √m. In such a brittle material, the fracture toughness can be considered to be very close... fracture mechanics. An important finding was that the cathodoluminescence 530 nm band that originated from excitons self-trapped on TiO6 octahedra, is sensitive to stress. Using the shift of this peak......
Improvement of Fracture Toughness Lanthanum Zirconate DAI H1,CAO X Q1,LI Q1,LI J Y1,ZHONG X H1 (1.Key Lab of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese... temperature applications. The fracture toughness and microhardness of nanocrystalline LZ (n-LZ), microcrystalline LZ (m-LZ) and LZ-5mol%8YSZ (LZ-5-8YSZ) composite (8YSZ for zirconia stabilized by 8 mol......
the omega(ω) and alpha(α) phases drastically prevent slip dislocation and deformation-induced martensitic transformation to brittle fracture.关键词:...In situ scanning electron microscopy observation of deformation and fracture behavior of Ti-3Zr-2Sn-3Mo-25Nb alloyMA Xiqun a,YU Zhentao a,HAN Yong b,SONG Xiping c,and SUN Qiaoyan b a Northwest......