DOI: 10.4028/www.scientific.net/kem.416.279
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Hong Hua Su, Yu Can Fu, Jiu Hua Xu, Wen Feng Ding, Hong Jun Xu

Abstract: In order to improve the machining performance of the new type porous metal bond wheel, a new attempt were carried out for fabricating porous metal bond matrix with adjustable and high porosity as well as large pore size by use of pore-forming agent ammonium bicarbonate (NH4HCO3) and a vacuum loose powder sintering process. The porosity, bending strength and microstructure of the as-sintered porous metal bond matrix have been studied. The results show that the pore-forming agent NH4HCO3 with a certain amount ca…

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