A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a ceramic surface coating method, comprising the following specific steps: preparing a paint; pretreating ceramic; coating the ceramic; roasting at a high temperature; checking and warehousing, wherein the paint comprises the following raw materials in parts by weight: chromic oxide powder and deionized water; the weight ratio of the chromic oxide powder to the deionized water is 1 to 5; and the thickness of the paint coated on the ceramic surface is 50-100nm; and after the paint is coated, putting the ceramic into a vacuum furnace, roasting, taking out, cooling, checking and warehousing. According to the ceramic surface coating method, a coating and a ceramic body mutually diffuse when the ceramic is roasted in the vacuum furnace, so as to form a novel structure texture, thus a flat and compact coating is formed on the ceramic surface; secondary electron emission in the ceramic is effectively restrained; meanwhile, accumulation of charges on the ceramic surface is effectively reduced by a semiconductor material of the coating; and the surface flash resistance of the ceramic is improved, thus the high voltage insulation resistance of the ceramic is effectively improved.
The invention discloses a ceramic surface coating method, comprising the following specific steps: preparing a paint; pretreating ceramic; coating the ceramic; roasting at a high temperature; checking and warehousing, wherein the paint comprises the following raw materials in parts by weight: chromic oxide powder and deionized water; the weight ratio of the chromic oxide powder to the deionized water is 1 to 5; and the thickness of the paint coated on the ceramic surface is 50-100nm; and after the paint is coated, putting the ceramic into a vacuum furnace, roasting, taking out, cooling, checking and warehousing. According to the ceramic surface coating method, a coating and a ceramic body mutually diffuse when the ceramic is roasted in the vacuum furnace, so as to form a novel structure texture, thus a flat and compact coating is formed on the ceramic surface; secondary electron emission in the ceramic is effectively restrained; meanwhile, accumulation of charges on the ceramic surface is effectively reduced by a semiconductor material of the coating; and the surface flash resistance of the ceramic is improved, thus the high voltage insulation resistance of the ceramic is effectively improved.
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