ARTICLE CONTAINING SILICON BASE MATERIAL, BOND LAYER AND PROTECTIVE LAYER

PROBLEM TO BE SOLVED : To provide an improved bond layer for an environment resistant coating film. SOLUTION : The bond layer for a silicon base material contains a silicon layer having a dispersed granular material. The granular material is selected from the group consisting of alumina (1), yttria (2), aluminum silicate (3), a rare earth metal element (4), an alkali earth metal element, aluminum, oxygen, yttrium, nitrogen, niobium, tantalum, hafnium, zirconium, carbon, silicon and their mixture.