A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention belongs to the technical field of preparation of bioactive ceramics, and particularly relates to a preparation method of bioactive ceramics. The preparation method comprises the following steps: (1) preparing modified calcium silicon phosphate powder; (2) uniformly mixing the modified calcium silicon phosphate powder, zirconium oxide, calcium metaborate dehydrate and carboxymethyl cellulose to obtain a mixture, and performing cold isostatic pressing on the mixture to prepare a bioactive ceramic green body; and (3) carrying out ball milling on calcium silicon phosphate, diopside, magnesium silicate and carboxymethyl cellulose to prepare slurry, coating a bioactive ceramic blank with the slurry, and carrying out drying and sintering to prepare the bioactive ceramic. According to the preparation method of the bioactive ceramic, technological parameters are easy to control, operation is convenient, one-time roasting forming is adopted, blank glaze adaptability is guaranteed to the maximum extent, and tight combination of raw material particles is guaranteed through staged constant-temperature sintering, so that the mechanical property of the prepared bioactive ceramic is guaranteed.
本发明属于生物活性陶瓷制备技术领域，具体的涉及一种生物活性陶瓷的制备方法。所述的制备方法由以下步骤组成：（1）改性硅磷酸钙粉体的制备；（2）将改性硅磷酸钙粉体、氧化锆、二水合偏硼酸钙以及羧甲基纤维素混匀得到混合料，混合料经冷等静压成型，制备得到生物活性陶瓷坯体；（3）将叠磷硅钙、透辉石、硅酸二镁和羧甲基纤维素进行球磨，制备得到浆料，将浆料涂覆于生物活性陶瓷坯体上，经干燥、烧结，制备得到生物活性陶瓷。本发明所述的生物活性陶瓷的制备方法，工艺参数易于控制，操作方便，采用一次焙烧成型，最大限度的保证坯釉适应性，分阶段恒温烧结确保原料颗粒结合紧密，从而保证制备的生物活性陶瓷的力学性能。
The invention belongs to the technical field of preparation of bioactive ceramics, and particularly relates to a preparation method of bioactive ceramics. The preparation method comprises the following steps: (1) preparing modified calcium silicon phosphate powder; (2) uniformly mixing the modified calcium silicon phosphate powder, zirconium oxide, calcium metaborate dehydrate and carboxymethyl cellulose to obtain a mixture, and performing cold isostatic pressing on the mixture to prepare a bioactive ceramic green body; and (3) carrying out ball milling on calcium silicon phosphate, diopside, magnesium silicate and carboxymethyl cellulose to prepare slurry, coating a bioactive ceramic blank with the slurry, and carrying out drying and sintering to prepare the bioactive ceramic. According to the preparation method of the bioactive ceramic, technological parameters are easy to control, operation is convenient, one-time roasting forming is adopted, blank glaze adaptability is guaranteed to the maximum extent, and tight combination of raw material particles is guaranteed through staged constant-temperature sintering, so that the mechanical property of the prepared bioactive ceramic is guaranteed.
本发明属于生物活性陶瓷制备技术领域，具体的涉及一种生物活性陶瓷的制备方法。所述的制备方法由以下步骤组成：（1）改性硅磷酸钙粉体的制备；（2）将改性硅磷酸钙粉体、氧化锆、二水合偏硼酸钙以及羧甲基纤维素混匀得到混合料，混合料经冷等静压成型，制备得到生物活性陶瓷坯体；（3）将叠磷硅钙、透辉石、硅酸二镁和羧甲基纤维素进行球磨，制备得到浆料，将浆料涂覆于生物活性陶瓷坯体上，经干燥、烧结，制备得到生物活性陶瓷。本发明所述的生物活性陶瓷的制备方法，工艺参数易于控制，操作方便，采用一次焙烧成型，最大限度的保证坯釉适应性，分阶段恒温烧结确保原料颗粒结合紧密，从而保证制备的生物活性陶瓷的力学性能。
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Calcium phosphate bioactive ceramic and preparation method thereof
| European Patent Office | 2015