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- W2350921875 abstract "Effect of rotation speed and time of ball milling on mechanical alloying(MA)of Y2O3-Al2O3 system was investigated.The result showed that the low rotation speed offers low energy,which can only refine the particles.Inereasing the rotation speed to 400 r/min makes Y2O3 polymorphic transform from stable cubic crystalline to metastable rhombic crystalline;At a rotation speed of 500 r/min the YAlO3(YAP)is synthesized from Y2O3 and Al2O3.At a rotation speed of 500 r/min and ratio of ball-to-powder 20∶1,solid-state reaction of Y2O3 and Al2O3 is divided into two steps,in first stage crystal size is reduced with distortion of crystal lattice of Al2O3.At the same time the ball milling promotes the polymorphic transformation of Y2O3.In the second stage,Y2O3 is transformed thoroughly into amorphous state,and YAP is synthesized by solid-state reaction from Y2O3 and Al2O3.However,it is difficult to form Y3Al5O12(YAG),Y4Al2O9(YAM)by ball milling." @default.
- W2350921875 created "2016-06-24" @default.
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- W2350921875 date "2010-01-01" @default.
- W2350921875 modified "2023-09-26" @default.
- W2350921875 title "PREPARATION OF 3Y_2O_3-5Al_2O_3 POWDER BY MECHANICAL ALLOYING" @default.
- W2350921875 hasPublicationYear "2010" @default.
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