All2O3/Al2O3 joints were brazed with a new kind of filler materials, which were formed by adding Al2O3 particulates into Ag-Cu-Ti active filler metal. The resul
The problem of description wavefront aberrations in non-circle apertures was discussed. The correlation matrix of Zernike polynomials in arbitrary non-circle ap
Microstructure evolution during superplastic deformation of a large-grained TiA l alloys with near-γ microstructure was characterized by orientation imaging mi
The enthalpies of formation of the ternary compounds Al4NiY, Al2NiY, Al2Ni6Y3, Al16 Ni3Y, AlNiY, Al3Ni2Y, AlNi8Y3, Al7Ni3Y2, and of the binary comp ounds Al2Y c
An apparatus, designed to simulate bubbling of a sieve tray operated in froth regime, was employed.Bubble contact angles in and above the incipient weeping regi
The influences of yttrium on the microstructure and mechanical properties of NiA l-28Cr-5.5Mo-0.5Hf alloy were investigated by using SEM, XRD and compressive te
Al-pillared interlayered montmorillonite ( Al-PILM) was prepared using the artificial Na-montmorillonite from the Qingfengshan bentonite mine as a starting mate