Pressureless Sintering of Hexagonal Boron Nitride Powders |
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| Journal | Materials Science Forum (Volume 554) |
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| Volume | Nitrides and Oxynitrides III |
| Edited by | Hasan Mandal |
| Pages | 207-212 |
| DOI | 10.4028/www.scientific.net/MSF.554.207 |
| Citation | Nuran Ay et al., 2007, Materials Science Forum, 554, 207 |
| Online since | August, 2007 |
| Authors | Nuran Ay, I. Tore |
| Keywords | Additive, Characterization, Hexagonal Boron Nitride (HBN), Pressureless Sintering |
| Abstract | Pressureless sintering of hexagonal boron nitride (BN) with and without additives was performed using a powder which was previously nitrided at 900oC and then heat treated at 1400oC. Sintering additives were B2O3 (2, 4, 6 wt %) and Y2O3 (2, 4, 6 wt %) and sintering temperatures was 1900oC. Sintered samples were characterized by XRD, SEM, micro hardness, density and mercury porosimeter measurements. Maximum density values of samples were 1.56 g/cm3 without additives and 1.63 g/cm3 with additives. Hardness values of samples were found to improve with the presence of additives. |
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