Process for preparing nano-class hydroxyphosphorite/alumina bioceramics

Abstract

A nano hydroxyphosphorite / alumina bioceramics is prepared through physically depositing hydroxyphosphorite, preparing precursor by template technique, stirring while heating to obtain nano-class precursor by calcium hydroxide suspension and phosphoric acid, ultrasonic treating to obtain suspension, and immersing alumina in it to obtain product.

Description

technical field

[0001] The invention relates to a preparation method of nano-hydroxyapatite / alumina composite bioceramics Background technique

[0002] As reported by Service RF in Science, Volume 294, pp. 1635-1637, 2001, natural bone is an inorganic-bioorganic composite, mainly containing collagen protein and hydroxyapatite. Collagen spontaneously forms fibrils, small hydroxyapatite crystals, that line the collagen helices. The size and orientation of the crystals are constrained by the collagen template, the crystals have the same orientation, and have the same orientation as the collagen template, and the precise structure between collagen and hydroxyapatite strictly determines the stress and strength of natural bone. Therefore, the use of template technology to synthesize hydroxyapatite with consistent orientation will be very meaningful for the study of synthesizing alternative bio-inorganic materials, studying the mineralization process of bio-inorganic materials, an...