摘要
将纯度为99.99%的高纯钛在20mL质量分数为30%的H2O2和2mL 1mol/L HCl的溶液中在60℃下处理24h,随后放入400℃马弗炉中保温1h,表面生成0.9μm厚的锐钛矿型二氧化钛层。利用X射线粉末衍射仪（XRD）、扫描电镜（SEM）和能谱仪（EDS）对试样的结构形貌和尺寸进行表征,球坑仪用来测二氧化钛氧化层的厚度,IC生物活性P-AES用来检测溶液中Ca离子和P离子浓度的变化。结果表明：在模拟人体液（SBF）中浸泡4 d后,伴随着溶液p H的下降,锐钛矿型二氧化钛表面有磷灰石生成,模拟人体液中阴离子和Ca^2＋之间的离子交换机理被认为有利于磷灰石的形成。
High purity titanium（ 99.99%） was treated in a mixed solution of 20 m L 30 mass% hydrogen peroxide and 2 m L 1 mol/L hydrochloric acid at 60 ℃ for 24 h,and then heat treated in the muffle furnace at 400 ℃ for 1 h to form a 0. 9 μm thick anatase-type titanium dioxide oxide layer on its surface. The surface morphology,phase structure and composition of the oxide layer were characterized by means of X-ray diffraction（ XRD）,scanning electron microscopy（ SEM） and energy dispersive X-ray spectroscopy（ EDS） analysis.The thickness of the layer was measured by the ball pit gauge. Inductively coupled plasma atomic emission spectroscopy（ ICP-AES） was used to detect the change of Ca ion and P ion concentration in solution. The results show that after immersion in human body fluid（ SBF）for 4 days,apatite is formed on the anatase-typ titanium dioxide surface with the decrease of solution pH. The mechanism of ion exchange between anion and Ca^2＋ in human body fluid is considered to be beneficial to the formation of apatite.
作者
王亚明
闫焉服
Osaka Akiyoshi
王广欣
孙艳艳
郭帅东
秦聪慧
宋永发
WANG Ya-ming;YAN Yan-fu;Osaka Akiyoshi;WANG Guang-xin;SUN Yan-yan;GUO Shuai-dong;QIN Cong-hui;SONG Yong-fa(School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471023, China;Research Center for High Purity Materials,Henan University of Science and Technology, Luoyang 471023, China;Faculty of Engineering, Okayama University, Tsushima-naka, Okayama-shi 700-8530, Japan)
出处
《材料热处理学报》
EI
CAS
CSCD
北大核心
2018年第6期103-109,共7页
Transactions of Materials and Heat Treatment
基金
国家02重大专项支持(2017ZX02408003)
