International Journal of Global Advanced Materials & Nanotechnology
2nd World Congress and Expo on Nanotechnology and Material Science April 04-06, 2016 at Dubai, UAE
Conference Proceedings

Oral Cubic Boron Nitride Reinforced Sialon Nano-Composites by Spark Plasma Sintering

PDF
  • Abbas Saeed Hakeem,
  • Bilal Anjum Ahmed,
  • Akolade Idris Bakare,
  • brahim Ahmed Ibrahim Ali,
  • Muhammad Ehsan Ali,
  • Tahar Laoui
Abbas Saeed Hakeem
Center of Excellence in Nanotechnology, King Fahd University of Petroleum & Minerals
Bilal Anjum Ahmed
Mechanical Engineering Department, King Fahd University of Petroleum & Minerals
Akolade Idris Bakare
Center of Excellence in Nanotechnology, King Fahd University of Petroleum & Minerals
brahim Ahmed Ibrahim Ali
Center of Excellence in Nanotechnology, King Fahd University of Petroleum & Minerals
Muhammad Ehsan Ali
Center of Excellence in Nanotechnology, King Fahd University of Petroleum & Minerals
Tahar Laoui
Center of Excellence in Nanotechnology, King Fahd University of Petroleum & Minerals, Saudi Arabia and Mechanical Engineering Department, King Fahd University of Petroleum & Minerals, Saudi Arabia
Published January 1, 2018
Copyright (c) 2018 Abbas Saeed Hakeem

Abstract

Aluminosilicate oxynitride and cubic boron nitride (cBN) composites having excellent mechanical properties andchemical stability in room temperature to high temperature applications. In the present study, cubic boron nitride (cBN)reinforcedalpha-Sialonnano-composites were preparedusing spark plasma sintering (SPS) technique. The starting powdersincluding Sialon precursors and various particles size of cBN (10, 20 and 30 wt.%) were homogeneously mixed by probesonication before sintering. The effect of SPS processing parameters on the densification and mechanical behavior of thesenano-composites were investigated. These cBN enabled in the densificationsialon composite samples were analyzed for phaseidentification by X-ray diffraction. As well as, composite samples were evaluated to find cBN to hBN transformation in theSialon matrix sintered at 1500°C. Field emission scanning electron microscopy(FESEM) used for morphology and hardnessand fracture toughnesswere measured.

PDF