1. Advances in Powder Metallurgy: Properties, Processing and Applications;Chang I,2013
2. Sintered Valve Seat Inserts - Microstructural Characterization;Jesus Filho ES;Materials Science Forum,2006
3. The Development of a Cobalt-Free Exhaust Valve Seat Insert;Fujitsuka H,2004
4. Self Lubrication Type P/M Materials for the Lead Free Valve Seat;Sakai M,2000