Lead-rich slags with different levels of PbO content have been prepared in laboratory.
选用实验室制备的不同PbO含量的富铅渣与工业化生产的铅烧结块在竖管炉中用石墨坩埚进行还原反应对比试验。
Lead-rich slags containing different level of PbO concentrations have been prepared in laboratory.
选用实验室制备的不同PbO含量的富铅渣,确定富铅渣的孔隙率和密度、软化温度、微观结构和相成分。
Lead-rich slags containing different CaO/SiO2 ratio have been prepared in laboratory.
制备不同CaO/SiO2比率的富铅渣,在实验室竖管炉中用石墨坩埚进行还原反应对比试验研究。
The effect mechanism of PbO atmosphere was proposed and the results revealed that the ceramics sintered in lead-rich atmosphere had better piezoelectric properties, especially the ceramics containing 10%PMN showed the optimized results of ε~T_(33)/ε_0=1 000, tan δ=0.
实验表明在富铅气氛的作用下,PZMN体系具有较优的性能,尤其是x=0。
10PbTiO 3 pre-calcined powders and ceramics were prepared by columbite metho d and sintered with lead-rich atmosphere.
实验表明在富铅气氛的作用下,微量氧化铅欠缺的初始粉体所制备出的陶瓷具有较好的介电性能,尤其是当初始粉体中氧化铅欠缺5%时的陶瓷具有最大的峰值介电常数。
The prognostic result proves that at the western side of Dayaoshan the prospect of Devonian stratabound Pb-Zn deposits(especially rich Pb- Zn deposits)is very impressive.
预测结果表明,大瑶山西测泥盆系层控铅锌矿的找前景特别是富铅锌矿的找矿前景可观。