H. Yamano, T. Takabatake, Tocalo Co., Ltd., Akashi, Japan; K. Tani, Tocalo Co.,Ltd, Akashi, Japan
The mechanical properties of thermal sprayed ceramic coatings were investigated. Alumina and yttria-stabilized zirconia coatings were deposited on plate substrates. Stainless steel plates and aluminum plates were used as substrates. The coatings were prepared at the different thickness. During deposition, the change of substrate temperature was recorded. Four-point bending test was carried out, while strains at the coating surface and the substrate surface were measured with strain gauges. The Young's modulus of the coating was determined using the composite beam theory. In addition, the rupture strain of the coating was measured by three-point bending test. The relationships between the results of these tests and the each substrate temperatures during deposition were discussed.
Summary: The mechanical properties of thermal sprayed ceramic coatings were investigated. Alumina and yttria-stabilized zirconia coatings were deposited on plate substrates. Stainless steel plates and aluminum plates were used as substrates. The coatings were prepared at the different thickness. During deposition, the change of substrate temperature was recorded. Four-point bending test was carried out, while strains at the coating surface and the substrate surface were measured with strain gauges. The Young's modulus of the coating was determined using the composite beam theory. In addition, the rupture strain of the coating was measured by three-point bending test. The relationships between the results of these tests and the each substrate temperatures during deposition were discussed.
