Plastic and nonmetallic article shaping or treating: processes – Including step of generating heat by friction
Patent
1991-01-07
1993-08-24
Derrington, James
Plastic and nonmetallic article shaping or treating: processes
Including step of generating heat by friction
264 62, 264112, C04B 4185
Patent
active
052386260
ABSTRACT:
A slidable ceramic member includes a base of a sintered ceramic material which is a compound including silicon (Si) as a constituent element, the base having a sliding surface, and a coated layer covering the sliding surface of the base, the coated layer comprising a compound of elements, such as barium (Ba) and calcium (Ca), belonging to group IIa of the periodic table, silicon (Si), and oxygen (O). The slidable ceramic member is used as a slidable component of a heat engine such as a cylinder liner or a piston ring which is subjected to repeated thermal stresses. Such a slidable ceramic member is manufactured by placing powder of a fluoride including elements belonging to group IIa of the periodic table on a surface of a base, and heating the base while rubbing the powder against the surface of the base, whereby the silicon (Si) contained in the base and the group-IIa elements contained in the powder can react with each other, thereby forming a slidable layer on the surface of the base.
REFERENCES:
patent: 3711171 (1973-01-01), Orkin
patent: 3953343 (1976-04-01), Sliney
patent: 4934837 (1990-06-01), Kawamura
Derrington James
Isuzu Ceramics Research Institute Co. Ltd.
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