共查询到18条相似文献,搜索用时 93 毫秒
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釉上彩红色颜料熔剂的研制 总被引:9,自引:4,他引:5
以碱-硼-硅系为基础,加入锶-氟复合助溶助色剂,研制了适应红色色剂的无铅无镉熔剂。其彩烤温度范围为680-820℃,对红色色剂呈色鲜艳明快稳定,光泽度好,耐酸性强,铅镉溶出符合ISO6486-2:1999(E)标准,完全能达到铅熔剂的效果。 相似文献
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用正交实验法研究了在碱.硼.硅系统基础熔剂中, 外加助熔助色成分MgO、CaO、SrO、BaO四种碱土金属氧化物的添加量及R2O:RO、SrO:CaO、RO:SiO2对无铅无镉釉上彩熔剂性能的影响规律.综合考虑熔剂的熔融性能、化学稳定性、彩烤效果等,对上述影响因素的最佳值进行了讨论. 相似文献
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无铅无镉陶瓷釉上颜料助熔剂的进一步研究 总被引:7,自引:4,他引:3
本文通过对无铅无镉釉上颜料研究的关键问题---熔剂的研究,确定了以碱硼酸盐玻璃为主体的熔剂系统,探讨了熔剂组份及与比对颜料热稳定性,色度、光泽度、化学稳定性等各项性能的影响。 相似文献
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本研究采用多种碱金属、碱土金属及稀土材料等复合熔剂的综合效应来代替铅釉中的铅元素,并通过实验总结出坯釉适应的一些规律,研制成功了适用于二次烧成的高档日用瓷无铅熔块釉。 相似文献
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氯氧铋作为回收金属粗铋的中间产物,其品位的高低直接影响着后面火法熔炼所产出粗铋的品位。在大量氯氧铋中铋含量的测定实践基础上,讨论了提高EDTA法测定氯氧铋中铋含量的准确度的方法。通过EDTA法测定氯氧铋精矿中铋的测定条件、干扰及消除、回收率等系统试验,拟定了以硫脲为指示剂测定铋的分析方法,该法适用性好,操作简便、准确度高,适用于中高含量铋的测定。 相似文献
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Jinho Kim Toshio Kimura Takashi Yamaguchi 《Journal of the American Ceramic Society》1989,72(8):1541-1544
Densification and microstructure de velopment in Bi2 O3 -doped ZnO have been studied with a special emphasis on the effect of the Bi2 O3 content. A small amount of Bi2 O3 in ZnO (0.1 mol%) retarded densification, but the addition of Bi2 O3 to more than 0.5 mol% promoted densification by the formation of a liquid phase above the eutectic temperature (∼740°C). The liquid phase increased grain-boundary mobility, which was responsible for the formation of intragrain pores and the decrease in the sintered density. The increase in the Bi2 O3 content increased the probability of the formation of skeleton structure, which reduced the grain growth rate and the sintered density. 相似文献
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Dixiong Wang Michael B. Clark Jr Susan Trolier‐McKinstry 《Journal of the American Ceramic Society》2018,101(8):3443-3451
Low‐temperature processed bismuth niobate (BNO) thin films were explored in this work as a potential candidate for high‐energy density capacitors. The BNO samples were fabricated by the chemical solution deposition method followed by a series of ultraviolet (UV) exposure and heat treatments. A UV treatment prior to the final pyrolysis step was found to be useful in eliminating bound carbon. X‐ray photoelectron spectroscopy (XPS) and secondary ion mass spectroscopy (SIMS) demonstrated that the residual carbon could be effectively removed at 350°C after UV exposure. Following a heat treatment at 450°C, the energy storage density of the BNO thin film reached 39 J/cm3 with an efficiency of 72%. Furthermore, 350°C and 375°C treated BNO samples showed high‐temperature stability such that the efficiencies of the films remained above 97% up to 150°C at 10 kHz under 1 MV/cm applied field. 相似文献
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