| 卤化银多晶光纤热挤压成型的研究 |
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| 引用本文： | 高建平,卞蓓亚,张议,武忠仁.卤化银多晶光纤热挤压成型的研究[J].无机材料学报,2001,16(3):541-544. |
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| 作者姓名： | 高建平 卞蓓亚 张议 武忠仁 |
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| 作者单位： | 中国科学院上海硅酸盐研究所, 上海 200050 |
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| 基金项目： | 863计划新材料领域资助项目(715-001-0211) |
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| 摘 要： | 采用热挤压法成型制备出卤化银多晶光纤．光纤端面扫描电镜形貌分析结果显示，挤压温度１２０～２１０℃，晶粒大小基本不变，晶粒尺寸１～２μｍ．挤压温度＞２１０℃后，随着挤压温度升高挤压压力降低，在２５０℃时晶粒尺寸５～１０μｍ，挤压温度的升高导致卤化银多晶光纤的晶粒长大，引起光纤散射损耗的增高．挤压模具中加入润滑剂可同时降低挤压压力和挤压温度，但引起光纤传输损耗的增加．
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| 关 键 词： | 外光纤 卤化银 热挤压成型 显微结构 |
| 文章编号： | 1000-324X(2001)03-0541-04 |
| 收稿时间： | 2000-6-2 |
| 修稿时间： | 2000年6月2日 |
Hot Extrusion of Polycrystalline Silver Halide Fibers |
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| GAO Jian-Ping,BIAN Bei-Ya,ZHANG Yi,WU Zhong-Ren.Hot Extrusion of Polycrystalline Silver Halide Fibers[J].Journal of Inorganic Materials,2001,16(3):541-544. |
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| Authors: | GAO Jian-Ping BIAN Bei-Ya ZHANG Yi WU Zhong-Ren |
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| Affiliation: | Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050; China |
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| Abstract: | The silver halide fibers were made by means of hot extrusion. SEM micrographs show that the grain sizes of the fibers do not change when temperature of hot extrusion T＝120～210℃and grain size 1～2μm. The pressure is decreased as the temperature increases when T ＞210℃,The grain size is 5～10μm at 250℃. The growth of grains results in scattering loss increment. The temperature and pressure are decreased when the model is smeared with lubricant, but the lubricant results in loss increment. |
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| Keywords: | infrared optical fiber silver halide hot extrusion microstructure |
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