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添加碳酸氢铵粉末,采用冶金法制备多孔钛-镁复合材料,并对多孔复合材料的性能进行综合考察。采用X射线衍射(XRD)和扫描电子显微镜(SEM)对孔隙特性和压缩性能进行表征。结果表明,通过调节碳酸氢铵的加入量可以控制该多孔材料的孔隙率;碳酸氢铵对多孔Ti-10%Mg的微观结构和相组成没有影响;多孔材料的开孔率和抗压强度随着碳酸氢铵的添加量和粒径的变化而变化。当碳酸氢铵添加量为25%(质量分数)时,得到孔隙率约50%的多孔材料的抗压强度与抗压模量与人骨的相似。
Add ammonium bicarbonate powder, the use of metallurgical preparation of porous titanium - magnesium composite materials, and the comprehensive study of the properties of porous composites. The pore characteristics and compressive properties were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results show that the porosity of the porous material can be controlled by adjusting the addition amount of ammonium bicarbonate. The ammonium bicarbonate has no influence on the microstructure and phase composition of porous Ti-10% Mg. The porosity and compressive strength The amount of ammonium bicarbonate and particle size changes. When the content of ammonium bicarbonate is 25% (mass fraction), the compressive strength and compressive modulus of porous materials with porosity about 50% are similar to that of human bone.