原料粒径对多孔陶瓷力学性能及孔径分布的影响规律
首发时间:2018-10-31
摘要:利用精炼渣、莱阳土、叶腊石、石英为原料,采用传统陶瓷工艺制备了性能良好的多孔陶瓷,并研究了制备生坯时的压力、原料粒径对多孔陶瓷烧结性能及孔径分布影响。研究发现,适当的压力下制备的样品有助于烧制成性能较好的多孔陶瓷;细颗粒原料,烧制后的多孔陶瓷吸水率、强度都有所提高,烧制后的样品平均孔径更小且孔径分布更窄,但最佳烧结温度较窄。其中在10MPa压力下制备的生坯,在1060℃烧制后的样品吸水率为30.2%,抗折强度为15.97MPa,孔隙率为42.10%,平均孔径为1.02μm,且孔径分布较窄,大多集中在0.6 - 1.5μm之间。
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Effect of raw material particle size on mechanical properties and pore size distribution of porous ceramics
Abstract:IUsing refining slag, Laiyang soil, pyrophyllite and quartz as raw materials, porous ceramics with good performance were prepared by traditional ceramic process. The effects of pressure and raw material particle size on the sintering properties and pore size distribution of porous ceramics were studied. It has been found that samples prepared under appropriate pressure help to burn porous ceramics with better performance; fine particle raw materials, water absorption and strength of fired porous ceramics are improved, and the average pore size of the sample after firing is more Small and narrower pore size distribution, but the optimum sintering temperature is narrower. The green body prepared under the pressure of 10 MPa has a water absorption rate of 30.2%, a flexural strength of 15.97 MPa, a porosity of 42.10%, an average pore diameter of 1.02 μm, and a narrow pore size distribution. Focus on between 0.6 - 1.5μm.
Keywords: norganic nonmetallic materials raw material particle size pressure pore size
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原料粒径对多孔陶瓷力学性能及孔径分布的影响规律
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