The interface orientation relationships between SiC whiskers and matrix have been studied by X-ray diffraction and crystallite orientation distri- bution functions (CODFs) analysis.The distribu- tion of SiC whiskers i...The interface orientation relationships between SiC whiskers and matrix have been studied by X-ray diffraction and crystallite orientation distri- bution functions (CODFs) analysis.The distribu- tion of SiC whiskers in Al matrix of the as-cast SiC_w/Al composite was nearly unperfect isotropic. Both matrix and SiC whisker in as-extruded SiC_w/Al composite were〈111〉fiber texture.It is suggested that there are certain interface orientation relationships between the SiC_w and the Al matrix.展开更多
1 Introduction The method of acoustic emission (AE)as a new technique to study the processesin metals and alloys in the solid phase hasbeen widely used and developed since thelast 20 years. Martensite transformationis...1 Introduction The method of acoustic emission (AE)as a new technique to study the processesin metals and alloys in the solid phase hasbeen widely used and developed since thelast 20 years. Martensite transformationis diffusionless. Because of changing fromone crystal structure to another by coopera-tive shear process the interfacial coherency展开更多
文摘The interface orientation relationships between SiC whiskers and matrix have been studied by X-ray diffraction and crystallite orientation distri- bution functions (CODFs) analysis.The distribu- tion of SiC whiskers in Al matrix of the as-cast SiC_w/Al composite was nearly unperfect isotropic. Both matrix and SiC whisker in as-extruded SiC_w/Al composite were〈111〉fiber texture.It is suggested that there are certain interface orientation relationships between the SiC_w and the Al matrix.
文摘1 Introduction The method of acoustic emission (AE)as a new technique to study the processesin metals and alloys in the solid phase hasbeen widely used and developed since thelast 20 years. Martensite transformationis diffusionless. Because of changing fromone crystal structure to another by coopera-tive shear process the interfacial coherency
