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《材料导报》期刊社  2018, Vol. 32 Issue (12): 1955-1958    https://doi.org/10.11896/j.issn.1005-023X.2018.12.003
  材料研究 |
Li2O/K2O物质的量比对P2O5-Al2O3-BaO-Li2O-K2O磷酸盐玻璃热光性能的影响
张礼华1,2,张云升1,殷倩文3
1 东南大学材料科学与工程学院,南京 211189;
2 西南科技大学材料科学与工程学院,绵阳 621010;
3 中国科学院上海光学精密机械研究所,上海201800
Effect of Different Li2O/K2O Ratio on the Thermo-optical Properties of Phosphate Glass with P2O5-Al2O3-BaO-Li2O-K2O
ZHANG Lihua1,2, ZHANG Yunsheng1, YIN Qianwen3
1 School of Materials Science and Engineering, Southeast University, Nanjing 211189;
2 School of Materials Science and Engineering, Southwest University of Science &Technology, Mianyang 621010;
3 Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
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摘要 通过高温熔融法制备了不同Li2O/K2O物质的量比的磷酸盐玻璃,研究了其热学性能和热光性能。采用干涉仪法测试了玻璃的折射率温度系数dn/dT,并进一步计算获得了热光系数。结果表明:随着Li2O/K2O物质的量比的增大,玻璃的转变温度Tg、软化温度Tf、热膨胀系数α皆出现极值点,呈现明显的混合碱效应;而玻璃的热光系数dS/dT随着Li2O含量增加而增大,当Li2O/K2O物质的量比为9∶6时,玻璃的dS/dT为0.08×10-6/K;在磷酸盐体系中可获得具有零热畸变的光学玻璃。    
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张礼华
张云升
殷倩文
关键词:  混合碱效应  磷酸盐玻璃  热学性能  热光性能  零热畸变    
Abstract: Phosphate glasses with various Li2O/K2O ratios were synthesized using the melt quenching technique. The thermo-optical properties of the glasses were studied. The temperature coefficients of refractive index (dn/dT) of the glasses were measured using interferometric technique and the thermo-optical coefficients were calculated. The results showed that with the increasing of Li2O/K2O ratios, mixed alkali effect could be observed on the glass transition temperature (Tg), softening temperature (Tf) and thermal expansion coefficient (α). Meanwhile, the thermo-optical coefficient (dS/dT) increased monotonously with the increase of Li2O content. The optimized value of thermo-optical coefficient with 0.08×10-6/K was obtained with Li2O/K2O ratio at 9∶6. Results show that a phosphate glass with zero thermal distortion can be obtained.
Key words:  mixed alkali effect    phosphate glass    thermal property    thermo-optical property    zero thermal distortion
               出版日期:  2018-06-25      发布日期:  2018-07-20
ZTFLH:  TQ171  
作者简介:  张礼华:女,1979年生,博士研究生,副教授,主要从事无机非金属材料研究 E-mail:zhanglihua1250@163.com 张云升:通信作者,男,1973年生,博士,教授,主要从事土木工程材料研究 E-mail:zhangys279@163.com
引用本文:    
张礼华,张云升,殷倩文. Li2O/K2O物质的量比对P2O5-Al2O3-BaO-Li2O-K2O磷酸盐玻璃热光性能的影响[J]. 《材料导报》期刊社, 2018, 32(12): 1955-1958.
ZHANG Lihua, ZHANG Yunsheng, YIN Qianwen. Effect of Different Li2O/K2O Ratio on the Thermo-optical Properties of Phosphate Glass with P2O5-Al2O3-BaO-Li2O-K2O. Materials Reports, 2018, 32(12): 1955-1958.
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http://www.mater-rep.com/CN/10.11896/j.issn.1005-023X.2018.12.003  或          http://www.mater-rep.com/CN/Y2018/V32/I12/1955
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