【摘要】 在对面心立方晶体｛１１１｝面上的显微蚀坑作形貌分析中，提出此晶面内缺陷的侵蚀势概念，这种侵蚀势具有严格的Ｓｉｅｒｐｉｎｓｋｉ垫的自相似结构。侵蚀过程具有复制的特征。在对红外焦平面列阵用晶膜的衬底材料碲锌镉（写作Ｃｄ＿（１－ｘ）Ｚｎ＿ｘＴｅ，或缩写式ＣＺＴ）晶体选材中，发现所得到的蚀坑形貌图样满足Ｓｉｅｒｐｉｎｓｋｉ三角的全部几何性质这可为选材研究提供判据更多还原

【Abstract】 Various rinds of fractal objects have been largely studied,since the firstBenoit B. Mandelbrot introduced“fractal”into geography in the 1970’s.The most ofthese studings are macrographic,fractal geometric examples in microscopic field arefewer. In the present paper,it was find that the etch pit pattern’s on （111）surfaces of CZT(Cd_1-xZn_xTe)crystal exist all the geometric characters of Sierpinski gasket（triangle）we as-sume a etching potential of defection the cryustal to explain the phenomena.更多还原