摘要
本实验采用牛、猪、羊三种骨头通过高温煅烧制备骨灰瓷原料。采用XRD和SEM方法表征三种骨灰料的晶相结构和显微结构。实验结果表明 :三种骨灰料经 14 0 0℃煅烧后均存在Ca1 0 (PO4 ) 6(OH) 2 、α -Ca3(PO4 ) 2 种晶相。在 132 0℃煅烧的三种骨灰料中 ,按牛、猪、羊顺序 ,Ca1 0 (PO4 ) 6 (OH) 2 含量分别为 87 2 %、89 1%、71 9% ;β-Ca3(PO4 ) 2 含量最高 ,其可塑性和成瓷性能好 ,从晶相上考虑选择羊骨为较佳的骨灰瓷原料。从白度和透光度上考虑选择牛骨为较佳原料。随着煅烧温度升高 ,三种骨头料的β-Ca3(PO4 ) 2 含量增加 ,羊骨和牛骨中的Ca1 0 (PO4 ) 6 (OH) 2 含量减少 ,而猪骨的Ca1 0(PO4 ) 6 (OH) 2 含量反而增加。因此煅烧温度升高对羊骨和牛骨有利 。
The bone china materials were prepared from the bones of pig, cattle and sheep by hightemperature calcining(at 1320 °C, 1400 °C, and 1450 °C). The polycrystalline structure and the microstrueture were determined by XRD and SEM. It was demonstrated there are three kinds of crystal phases(α-Ca 3(PO 4) 2, β-Ca 3(PO 4) 2, Ca 10 (PO 4) 2(OH) 2) in all the three raw materials. In which Ca 10 (PO 4) 2(OH) 2 was the main crystal phase. Its content was respectively 87 2%, 89 1%,and 71 9% for cattle bone, pig bone and sheep bone. The content of β-Ca 3(PO 4) 2 was 1 6%, 0 0%, and 20 2% respectively. The sheep bone had the highest content of β-Ca 3(PO 4) 2 was 1 6%, 0 0% and 20 0% respectively. The sheep bone had the highest content of β-Ca 3(PO 4) 2 and had a best plasticity and processing perfoormance. In the view point of crystal structure, sheep bone was the best material. If while and transparency was considered, pig bone was the best. The content of Ca 10 (PO\-4)\-2(OH)\-2 increased for all three kind bones as the increase of calcining temperature. The content of β-Ca 10 (PO 4) 2(OH) 2 in sheep bone and cattle bone decreased and that in pig bone increased when the calcining temperature increased. It means that higher temperature is benefit to the calcining of sheep bone and cattle bone and lower temperature benefit to pig bone.
出处
《中国陶瓷》
CAS
CSCD
2002年第5期14-18,共5页
China Ceramics
