根据点阵常数与添加组份的变化和液相曲綫的过程,铂铱合金是在无裂纹的固溶体系形成下凝结的。弗·益柏尔在灼烧含10～25％Ir的硬质铂铱合金丝时,研究了抗拉强度的增高。尔·罗娃克把这样的灼烧叫做标准时效。格·焉逊、克·埃克哈尔特和克·克诺伊由比电阻和抗拉强度的变化,推测而断定了内部组织的变化,由于铂和铱具有几乎相同的弥散能力,这种内部组 Platinum-Iridium alloys are coagulated under the formation of a solution-free solid solution based on the lattice constant and addition of components and the liquid-phase curve. Fibrebauer studied the increase in tensile strength when burning hard platinum-iridium alloy wire containing 10 to 25% Ir. Er · Luo Wacker called such burning standard time. The evolution of internal tissues was speculated by the variation in resistivity and tensile strength of G. Johnson, E. Eckhart, and C. Knock, and because of the nearly same dispersion of platinum and iridium, this internal group