![Sample our Physical Sciences journals, sign in here to start your FREE access for 14 days]({"type":"image" , "src" : "/sda/110819/TOC-Subject-Sample-2021-Physical-Sciences.jpg"})
Abstract
Deposition of electroless (EL) Ni-B-Si3N4 composite coating and its characteristic properties are addressed.Hydrogen evolution limits the level of incorporation of Si3N4 particles in the EL Ni-B matrix to 2 wt%. Incorporation Si3N4 particles increased the surface roughness of the matrix but did not influence its structure. The microhardness of EL Ni-B-Si3N4 composite coating in its as-plated condition is 632 ± 17 HV0.1. Heat treatment at 350 and 450°C for 1 h increased its hardness. Adhesive wear is the predominant wear mechanism of EL Ni-B-Si3N4 composite coating. Its corrosion protective ability did not differ much with its plain counterpart.
Acknowledgments
Financial support given to this work by the Council of Scientific and Industrial Research (CSIR), New Delhi, India, is gratefully acknowledged. The authors thank Dr. Srikanth, Director, National Metallurgical Laboratory, Jamshedpur, for his constant support and encouragement to carry out this research work and permission to publish this article.