| 摘要 |
PURPOSE:To produce an implant material having a great affinity for a living body and high strength by adding P and Ca compds. to a soln. prepd. by hydrolyzing alkyl silicate to obtain sol, introducing hydroxyl groups into a metal chloride layer formed on the surface of a metal, dipping this metal in the sol, drying and calcining a formed sol film. CONSTITUTION:Ethyl silicate is hydrolyzed by mixing with a soln. of ethanol in hydrochloric acid and the resulting soln. is mixed with calcium ethoxide and phosphoric acid to obtain sol. A metal bar such as a stainless steel bar is heated in gaseous HCl or Cl2 to form a metal chloride layer on the surface of the bar and this bar is put in water, heated, taken out and dried to introduce hydroxyl groups into the metal chloride layer. The bar is then dipped in the sol and a formed sol film is dried at about 60 deg.C and heated at about 350 deg.C. An implant material having a great affinity for a living body and high strength and useful as an artificial tooth or bone is produced. |
