摘要Sintering of cubic boron nitride (cBN) with addition of Al is carried out in the temperature range 1300--1500°C and under the pressure 5.5GPa. When sintered at 1300°C, a weak diffractive peak of hexagonal BN (hBN) is observed in the Al-cBN sample, indicating the transformation from cBN to hBN. No nitrides or borides of Al are observed, which indicated that Al does not react with cBN obviously. When the sintering temperature is increased to 1400°C, the diffractive peak of hBN disappears and new phases of AlN and AlB2 are observed, due to reactions between Al and cBN. When the sintering temperature is further increased to 1500°C, the contents of AlN and AlB2 phases increase and the Al phase disappears completely.
Abstract：Sintering of cubic boron nitride (cBN) with addition of Al is carried out in the temperature range 1300--1500°C and under the pressure 5.5GPa. When sintered at 1300°C, a weak diffractive peak of hexagonal BN (hBN) is observed in the Al-cBN sample, indicating the transformation from cBN to hBN. No nitrides or borides of Al are observed, which indicated that Al does not react with cBN obviously. When the sintering temperature is increased to 1400°C, the diffractive peak of hBN disappears and new phases of AlN and AlB2 are observed, due to reactions between Al and cBN. When the sintering temperature is further increased to 1500°C, the contents of AlN and AlB2 phases increase and the Al phase disappears completely.
ZHAO Yu-Cheng;WANG Ming-Zhi. Cubic BN Sintered with Al under High Temperature and High Pressure[J]. 中国物理快报, 2007, 24(8): 2412-2414.
ZHAO Yu-Cheng, WANG Ming-Zhi. Cubic BN Sintered with Al under High Temperature and High Pressure. Chin. Phys. Lett., 2007, 24(8): 2412-2414.
[1] Kopac J and Krajnik P 2006 J. Mater. Process. Tech. 175 278 [2] Kato H, Shintani K and Sumiya H 2002 J. Mater. Process.Tech. 127 217 [3] Liu X L, Wen D H, Li Z J, Xiao L and Yan F G 2002 J. Mater.Process. Tech. 129 200 [4] Neo K S, Rahman M, Li X P, Khoo H H, Sawa M and Maeda Y 2003 J. Mater. Process. Tech. 140 326 [5] Casanova C A M, Balzaretti N M, Voronin G and Jornada J A H D 1999 Diamond Relat. Mater. 8 1451 [6] Benko E, Stanis\l oaw J S, Kr\'olicka B, Wyczesany A and BarrT L 1999 Diamond Relat. Mater. 8 1838 [7] Klimczyk P, Benko E, Jablonska K L, Piskorska E, Heinonen M,Ormaniec A, Zawislan W G and Urbanovich V S 2004 J. Alloy Compd. 382 195 [8] Rong X Z, Tsurumi T, Fukunaga O and Yano T 2002 Diamond Relat.Mater. 11 280 [9] Benko E, Klimczyk P, Morgiel J, W\l ochowicz A and Barr T L 2003 Mater. Chem. Phys. 81 336 [10] Faran E, Gotman I and Gutmanas E Y 2000 Mater. Sci.Eng. A 288 66 [11] Du Y J, Li S Y, Zhang K and Lu K 1997 Scripta Materialia 36 7
2007, Vol. 24 
