Biomedical Applications: Composite Metal Alloys with Additives

Abstract

Recently, many researchers focused on biocompability, corrosion resistance and properties behavior of implant materials in order to length the endoprostheses life. One of the rapid development areas of research is in the biomaterials field. Historically the uses of biomaterials has been to replace diseased or damaged tissues. This present paper reviews the research works carried out in the field of composite metal alloys reinforced with additive and to analyze the influence of modifying additive on mechanical properties of composite materials on the cobalt (Co), titanium (Ti) and magnesium (Mg) based alloy. The desirable mechanical properties of the matrix component compensate for the poor mechanical behavior of the biomaterials, while in turn the desirable bioactive properties of the additives improve those of metal alloys. The following additives were reviewed for research: poly methyl methacrylate (PMMA), fluoroapatite (FA) and bioglass. Results show that these composites can be the alternative materials for biomedical applications.

Trends in Metal-Based Composite Biomaterials for Hard Tissue Applications

“…35,38,48,57,72,74,[89][90][91][92][93] For hard tissue applications, metallic biomaterials are preferable candidates due to their desirable mechanical properties, which on one hand can compensate for the poor mechanical properties of the additives (ceramics or polymers) and, on the other, provide ease of production for bioactive/biodegradable composites with properties similar to bones. 94 For example, even though HAp is biodegradable, it does not have the necessary compressive strength to be used for loadbearing applications. In this case, the addition of Ti to HAp would not only provide the necessary strength but would also provide bioactivity to the prepared implant.…”

Современные Концепции Изучения Процессов Коррозионной Деградации Материалов И Покрытий: Теория, Практика, Методология Исследований

“…Эти постоянные имплантаты остаются у пациента на протяжении всей его жизни, а в некоторых случаях требуют удаления, т.е. необходимости повторного хирургического вмешательства[307,[438][439][440][441].Возрастание интереса к биорезорбируемым металлическим материалам, в особенности магнию и его сплавам, обусловлено совокупностью их свойств. Модуль упругости и предел текучести при сжатии магния идентичны механическим свойствам натуральной кости[442].…”