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    • 7. 发明专利
    • Sliding member
    • 滑动会员
    • JP2013204091A
    • 2013-10-07
    • JP2012074230
    • 2012-03-28
    • Toyota Central R&D Labs Inc株式会社豊田中央研究所
    • KAJITA SEIJITOYAMA MAMORUWASHIZU HITOSHIOMORI SHUNEIMORI HIROYUKI
    • C23C16/27F16C33/24
    • PROBLEM TO BE SOLVED: To provide a sliding member including a sliding layer which has a lower coefficient of friction as compared with conventional ones by changing an isotopic composition thereof.SOLUTION: A sliding member includes: a base material; and a sliding layer which is formed in the vicinity of the surface of the base material and includes a heavy isotope at a ratio higher than a natural abundance ratio with respect to the entire of isotopes of a same name element, the heavy isotope having a mass number larger than that of a major isotope having the largest natural abundance ratio in the same name element. The sliding layer is an amorphous layer comprising an amorphous form. The sliding layer may be a crystalline layer comprising a crystalline excluding diamond. It is considered that characteristics at the inside of a solid that bears an energy dissipation mechanism changes as compared with conventional ones by an increase of isotopes having a large mass number, and thereby the coefficient of friction of the sliding layer is decreased. The sliding layer preferably includes, for example, 50 at.% or more of the heavy isotope in total with respect to the entire of isotopes of the same name element.
    • 要解决的问题:提供一种滑动构件,其包括通过改变其同位素组成而具有比常规滑动摩擦系数低的滑动层。滑动构件包括:基材; 以及形成在基材表面附近的滑动层,并且包括相对于相同名称元素的全部同位素,其比例高于天然丰度比的重质同位素,重质同位素具有质量 数量大于同名元素中天然丰度最大的主要同位素。 滑动层是包含无定形形式的非晶层。 滑动层可以是包括除金刚石之外的结晶的结晶层。 认为通过增加具有大质量数的同位素,具有能量耗散机构的固体内部的特性与常规的相比改变,因此滑动层的摩擦系数降低。 相对于相同名称元素的全部同位素,滑动层优选包括例如总重量为50重量%以上的重同位素。