Simultaneous synthesis and consolidation of nanostructured 1.5Ti-Al2O3 from mechanically activated powders by high-frequency induction heating

Title
Simultaneous synthesis and consolidation of nanostructured 1.5Ti-Al2O3 from mechanically activated powders by high-frequency induction heating
Authors
채성명박제신김원백오성택윤진국손인진
Keywords
Combustion synthesis; Composite materials; Nanomaterials; Mechanical properties; Ti-Al2O3
Issue Date
2009-12
Publisher
Metals and Materials International
Citation
VOL 15, NO 6, 931-936
Abstract
A dense nanostructured 1.5Ti-Al2O3 composite (volume fraction of Al2O3; 0.62) was simultaneously synthesized and consolidated in a high-frequency induction heated combustion synthesis method within 2 min in one step from mechanically activated powders of 1.5 TiO2 and 2 Al. Simultaneous combustion synthesis and consolidation were accomplished under the combined effects of an induced current and mechanical pressure. Highly dense 1.5Ti-Al2O3 with a relative density of up to 99.8 % was produced under simultaneous application of 60 MPa of pressure and an induced current. The average hardness and fracture toughness values of the composite were 1513 kg/mm2 and 7 MPa·m1/2, respectively.
URI
http://pubs.kist.re.kr/handle/201004/36935
ISSN
1598-9623
Appears in Collections:
KIST Publication > Article
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