Phosphate-based chemically bonded ceramics were formed from magnesium potassium phosphate (MKP) binder and either industrial fly ash or steel slag. The resulting ceramics were subjected to solid-particle erosion by a stream of either angular Al_2O_e particles or rounded SiO_2 sand. Particle impact angles were 30 or 90 deg and the impact velocity was 50 m/s. Steady-state erosion rates, measured as mass lost from a specimen per mass of impacting particle, were dependent on impact angle and on reodent particle size and shape. Material was lost by a combination of fracture mechanisms. Evolution of H_2O from the MKP phase appeared to contribute significantly to the material loss.
展开▼
机译：磷酸盐基化学键合陶瓷由磷酸镁钾（MKP）粘合剂和工业粉煤灰或钢渣制成。所得的陶瓷通过有角度的Al_2O_e颗粒或圆形的SiO_2砂流遭受固体颗粒侵蚀。粒子撞击角为30度或90度，撞击速度为50 m / s。稳态腐蚀速率（以每质量撞击颗粒的质量从样品中损失的质量来衡量）取决于撞击角度以及颗粒的大小和形状。断裂机理的结合使材料损失了。从MKP相中析出的H_2O似乎对材料的损失有很大的贡献。
展开▼
