Investigation of two step sintering on microstructure and compresive strenght of nano structured forsterite scaffold using lost foam

Subject Areas : journal of New Materials

Seyed M Mirhadi ¹ , A.A Nourbakhsh ² , نجمه Lotfian ³ , پریسا Mashayekh ⁴

1 - مربی ، گروه مهندسی مواد ، واحد شهرضا ،دانشگاه آزاد اسلامی ،شهرضا،ایران
2 - دانشیار، گروه مهندسی مواد ، واحد شهرضا ،دانشگاه آزاد اسلامی ،شهرضا،ایران
3 - دانشگاه آزاد اسلامی، واحد شهرضا، باشگاه پژوهشگران جوان و نخبگان، شهرضا، ایران
4 - کارشناسی ارشد،گروه مهندسی مواد ، واحد شهرضا ،دانشگاه آزاد اسلامی ،شهرضا،ایران

Received: 2014-11-07 Accepted : 2017-11-16 Published : 2017-08-23

Keywords: forsterite scaffold, lost foam, porousity, Two step sintering,

Abstract :

This paper reports the successful synthesis of nano structured forsterite (Mg₂SiO₄)scaffold with high compressive strength for tissue engineering application. Forsterite slurry was prepared and pre-cut foams were immersed in the slurry for 5 min. The saturated foams were then annealed at various times and temperatures using the two step sintering method. The compressive strength and porosity of the scaffolds were in the range of 0.03-24.16 MPa and 58-88% depends on the heat treatment process, respectively. The J samples consisted of grains in the range of24 to35 nm and micron size pores that could be detected by SEM observation.

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