【摘要】 依据量和单位的国家标准与规范,结合三元相图的物理含义,分析科技书刊中三元相图表述不规范的问题,给出规范的表达形式。认为三元相图中不应以某组元的化学元素符号或分子式当作其量符号,各边的量含义应为某组元的质量分数或体积分数或摩尔分数,量符号应为w(组元)、w(组元),或φ(组元)、φ(组元),或x(组元)、x(组元),单位常用"%"。更多还原

【Abstract】 According to national standards of the quantity and unit,taking into account physical meanings of ternary phase diagram,we analyze problems and give the standard expression of ternary phase diagram in scientific books and periodicals.It is thought that the quantity symbols of ternary phase diagram should not be represented as the chemical element or the molecular formula of a group,but should be quality fraction or volume fraction or atomic number scores for the group,which should be expressed as w(group),w(group),or φ(group),φ(group),or x(group),x(group),and "%" is commonly used as its unit.更多还原