| Title | Synthesis and properties of new β-Sialon/TiN composites via a novel AlxTiy intermediate |
| Publication Type | Journal Article |
| Year of Publication | 2016 |
| Authors | Calloch, P., Brown I.W.M., Mackenzie K.J.D., Hanna J.V., and Rees G.J. |
| Journal | Ceramics International |
| Volume | 42 |
| Issue | 2 |
| Pagination | 2330 - 2338 |
| Date Published | 2016 |
| ISSN | 02728842 (ISSN) |
| Keywords | Aluminium particles, Aluminium powder, aluminum, Aluminum nitride, Elastic moduli, Fracture toughness, Inert atmospheres, Mechanical properties, Nanosized titania, nitrogen, Reaction bonding, Sialon, Sintering, Sol-gel process, Sol-gels, Tensile strength, Thermal shock resistance, Tin, Titanium aluminides, Titanium compounds, titanium dioxide, Titanium nitride, Yttrium oxide |
| Abstract | A new synthesis of β-Sialon/TiN composites by reaction bonding of aluminium powder coated with nanosized titania is reported. A sol-gel method was used to coat the aluminium particles with titania and the resulting powder was calcined in an inert atmosphere to produce a TixAly-Al2O3 composite which was heat-treated in nitrogen to form an AlN-Al2O3-TiN composite. After addition of a suitable silicon phase and yttrium oxide as a nitridation and sintering aid, a β-Sialon/TiN composite was formed by reaction bonding under nitrogen. Young's modulus, hardness, fracture toughness, tensile strength and thermal shock resistance of the new composites were measured and compared with a standard β-Sialon fabricated by reaction bonding of Al2O3, AlN and Si under similar conditions. © 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved. |
| URL | http://www.scopus.com/inward/record.url?eid=2-s2.0-84955167079&partnerID=40&md5=85bd813918e2a6e15ac91fc3fee5b359 |
| DOI | 10.1016/j.ceramint.2015.10.029Article |
