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Structural analysis of PM biocomposites based on hydroxyapatite nanopowders elaborated by spark plasma sintering route

机译:基于火花等离子体烧结途径阐述的基于羟基磷灰石纳米粉粉的PM生物复合物的结构分析

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The objective of this research is the development of a detailed structural analysis of biocomposites with ceramic matrix of hydroxyapatite (Hap) reinforced by titanium (Ti), elaborated by powder metallurgy technology. Nanometric Hap powders (<200 nm) 75% wt and micrometric Ti powders (<150μm) are homogenized in a high energy ball mill Pulverisette 6. Spark plasma sintering (SPS) is the sintering route able to lead to nanostructured sintered samples when nanopowders are used as raw material. The SPS parameters are: the sintering temperature, T=(1000-1100)°C and the maintaining time, t=(10-20) minutes in vacuum. The influence of the sintering parameters on the composites structures is monitored using the optical microscopy (OM), electronic microscopy (SEM) and the X-Ray diffraction (XRD).
机译:该研究的目的是开发通过钛(Ti)加强的羟基磷灰石(HAP)陶瓷基质的生物复合物的详细结构分析,由粉末冶金技术阐述。纳米HAP粉末(<200nm)75%wt和微米Ti粉末(<150μm)在高能球磨机粉碎机6中均化。火花等离子体烧结(SPS)是当纳米粉末时能够导致纳米结构烧结样品的烧结途径用作原料。 SPS参数是:烧结温度,T =(1000-1100)°C和保持时间,真空中的T =(10-20)分钟。使用光学显微镜(OM),电子显微镜(SEM)和X射线衍射(XRD)监测烧结参数对复合材料结构的影响。

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