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热处理制度对RCS系着色微晶玻璃析晶性能的影响

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Abstract:

采用不同热处理制度对掺加硫硒化镉的R2O-CaO-SiO2(RCS,R为Na,K)系玻璃进行显色处理得到着色微晶玻璃。通过X射线衍射、场发射扫描电镜及紫外可见分光光度计等测试分析手段研究不同热处理制度对RCS系着色微晶玻璃析晶性能的影响。结果表明在700℃进行显色热处理,微晶玻璃的主晶相为柱状的硬硅钙石[Ca6Si6O17(OH)2];在750℃和800℃进行显色热处理,微晶玻璃的主晶相为放射状的硅碱钙石(K2Na4Ca5Si12O30F4)和α-硅碱钙石[K3Na3Ca5Si12O30F3(OH)1H2O];随着显色温度的提高和显色时间的延长,微晶玻璃的颜色由黄色逐步向红色转变,微晶玻璃的截止波长向可见光谱的长波方向移动。

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