Title: Influence of spraying distance of ceramic soft wire flame spraying on properties of layer
Abstract: By using the soft wire flame spraying equipment and Al_2O_3-3%TiO_2 ceramic soft wire,the spraying processing and properties of coatings were investigated. The result shows that the strength and density of coating was improved clearly by appending a bit of TiO_2。 By the analysis of X-ray diffraction, the coating is mainly made of α-Al_2O_3 and γ-Al_2O_3. α-Al_2O_3 is the main phase in the coating, which makes the favorable property in the coating. Under the condition of working pressure C_2H_2 (0.135 MPa) and O_2(0.3 MPa) ,and gas flux of 65 L/min and 62 L/min, and spread distance of 80mm, the combination strength can reach as high as 22 MPa,and the hardness can reach to 1200 HV.At the same time, the cavity ratio can decrease to 4%.
Publication Year: 2006
Publication Date: 2006-01-01
Language: en
Type: article
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