(中國科學院上海硅酸鹽研究所, 上海 200050)
摘 要: 等離子噴涂是一種常用的生物醫(yī)用材料表面改性技術， 被廣泛應用于鈦等金屬人工骨的表面改性。 為了滿足人工骨涂層的臨床應用需要，近年來發(fā)展了一些新的涂層材料和后處理工藝技術。 利用火焰蒸汽處理技術對等離子噴涂羥基磷灰石涂層進行后處理， 提高了涂層的結晶度， 降低其在體液中的降解。 經(jīng)堿處理的等離子噴涂鈦涂層，生物活性有了明顯的改善。 等離子噴涂硅灰石和硅酸二鈣陶瓷是一類不同于傳統(tǒng)磷酸鈣系的新型生物活性材料， 其性能和結構已被初步研究。 同時介紹了等離子噴涂人工骨涂層材料在這幾個方面的近期研究進展。
關鍵字: 等離子噴涂； 人工骨涂層； 生物活性；生物相容性
LIU Xuan-Yong, ZHENG Xue-Bin
（Shanghai Institute of Ceramics, Chinese Academy of Sciences,
Shanghai 200050, China）
Abstract:Plasma spraying technology is widely used to modify the surface of biomedical materials, such as titanium and its alloys. In order to obtain the artificial bone coatings for the application in clinic, some new materials and process were investigated. The crystallinity of plasma sprayed hydroxyapatite coatings are improved by using vapor-flame treatment process, and then the dissolution of hydroxyapatite coating in body fluid decreases. After treated by alkali, the plasma sprayed titanium coating possesses good bioactivity. As the new bioactive coatings, plasma sprayed wollastonite and dicalcium silicate coatings are being researched. New developments of plasma sprayed biomedical coatings for artificial bone were introduced simply.
Key words: plasma spraying; artificial bone coating; bioactivity; biocompatibility
