Watanabe K, Okawa S, Miyakawa O, Nakano S, Shiokawa N, Kobayashi M
Dental Materials and Technology, School of Dentistry, Niigata University.
Shika Zairyo Kikai. 1990 May;9(3):453-62.
To examine the interface reaction between porcelain and a commercial Ni-Cr dental alloy (containing higher Cr and Mo) during porcelain firing, electron probe microanalyzer (EPMA) and X-ray diffraction have been used to characterize the interface which has emerged by means of selective dissolution of the alloy caused by a bromine-methanol solution. Much Cr oxide was formed at the early stage of firing, and remained in the reaction layer even if the holding time at 960 degrees C was up to 8 minutes. As a result, many Cr atoms diffused into the porcelain layer, most of which was found to form oxides through X-ray diffraction. Moreover, the porcelain layer nearest to the oxide layer was deduced to be modified seriously.
为了研究烤瓷过程中瓷与一种商用镍铬牙科合金（含较高的铬和钼）之间的界面反应，采用电子探针微分析仪（EPMA）和X射线衍射对通过溴 - 甲醇溶液对合金进行选择性溶解而出现的界面进行了表征。在烧结初期形成了大量的氧化铬，即使在960℃下保温时间长达8分钟，氧化铬仍留在反应层中。结果，许多铬原子扩散到瓷层中，通过X射线衍射发现其中大部分形成了氧化物。此外，推断最靠近氧化层的瓷层发生了严重改性。
