公开(公告)号：US4828933A

公开(公告)日：1989-05-09

申请号：US130497

申请日：1987-12-09

申请人： Ian R. McGill ,  Kevin A. Lucas

发明人： Ian R. McGill ,  Kevin A. Lucas

IPC分类号： A44C25/00 ,  A44C27/00 ,  C23C10/34 ,  C23C10/48 ,  C23C10/56 ,  C23C16/06 ,  C23C16/08 ,  C23C16/30

CPC分类号： A44C27/006 ,  C23C10/34 ,  C23C10/48 ,  C23C10/56 ,  Y10T428/12458 ,  Y10T428/12875

摘要： A platinum article, especially an article of jewellery, has its surface region modified to improve its scratch resistance by the addition of at least one element which forms an intermetallic compound with platinum, especially aluminum and chromium. The surface region may be formed by the pack cementation chemical vapor deposition process.