Ultrahigh pressure sintering of polycrystalline diamond cubes  

作　　者：Hu Shao-Chung Chang Kuen-Liang Sung James C. Tso Pei-Lum Hsu Kai-Hung Sung Michael 

机构地区：[1]KINIK Company,64,Chung-San Rd.,Ying-Kuo [2]National Taipei University of Technology [3]National Taiwan University [4]PME Dept.National Tsing Hua University [5]Advanced Diamond Solutions,Inc.,351 King Street Suite 813,San Francisco,CA 94158,U.S.A.

出　　处：《金刚石与磨料磨具工程》2008年第S1期70-76,79,共8页Diamond & Abrasives Engineering

摘　　要：Polycrystalline grits(polygrits) have been used widely in industry as abrasives.Due to their higher impact strength and the friable nature,polygrits are more endurable and more efficient than monocrystal grits (monogrits) in material removal applications.For example,polygrits of alumina may last longer and cut faster than monogrits.Similarly,polygrits of cubic boron nitride is a superior superabrasive than monogrits of the same. Although diamond superabrasives have been indispensable for constructional sawing applications and industrial grinding applications,there has no polygrits of diamond that are commercially available.In this research,we used a novel technology to sinter micron diamond fines to form polygrits of diamond.The characterization demonstrated that polygrits of diamond can be tough to withstand impact.But due to the presence of micro grains,the grit can sharpen itself without dulling by shedding the worn grains.This paper revealed many examples of using diamond polygrits.Polycrystalline grits(polygrits) have been used widely in industry as abrasives.Due to their higher impact strength and the friable nature,polygrits are more endurable and more efficient than monocrystal grits (monogrits) in material removal applications.For example,polygrits of alumina may last longer and cut faster than monogrits.Similarly,polygrits of cubic boron nitride is a superior superabrasive than monogrits of the same. Although diamond superabrasives have been indispensable for constructional sawing applications and industrial grinding applications,there has no polygrits of diamond that are commercially available.In this research,we used a novel technology to sinter micron diamond fines to form polygrits of diamond.The characterization demonstrated that polygrits of diamond can be tough to withstand impact.But due to the presence of micro grains,the grit can sharpen itself without dulling by shedding the worn grains.This paper revealed many examples of using diamond polygrits.

关 键 词：PCD superabrasives DIAMOND grits CMP PAD conditioners 

分 类 号：TQ164[化学工程—高温制品工业]