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Ca2+的琼脂包覆及控释固化技术制备多孔Si3N4陶瓷
作者:郭肖峰1 马伊欣1 魏正华1  双1 吴甲民1 林建平2 
单位:(1. 华中科技大学材料科学与工程学院 材料成形与模具技术国家重点实验室 武汉 430074 2. 厦门理工学院材料科学与工程学院 福建省功能材料及应用重点实验室 福建 厦门 361024) 
关键词:直接凝固注模成型 多孔氮化硅陶瓷 琼脂包覆 高价反离子 可控释放 
分类号:TQ620.1
出版年,卷(期):页码:2019,47(12):0-0
DOI:
摘要:

 基于高价反离子直接凝固注模成型工艺,采用乳化–固化法制备琼脂包覆Ca2+的微球,利用琼脂在加热的浆料中溶解,缓慢释放出包覆的Ca2+,Ca2+压缩陶瓷颗粒间的双电层,实现Si3N4浆料的原位失稳固化。加入水相的5%(体积分数)、10%、15%和20%的Tween 80作为水相乳化剂,向油相中加入相同含量的Span 85作为油相乳化剂(水油体积比为1:1),讨论乳化剂加入量对琼脂包覆效果的影响。研究结果表明乳化剂加入量为10%时,制备出的琼脂微球尺寸分布均匀且球形度较好;采用琼脂包覆Ca2+控释固化Si3N4浆料,可将固化时间缩短至1 h;包覆Ca2+的琼脂微球加入量为0.5%(质量分数)时,制备出的多孔Si3N4陶瓷固化性能和力学性能达到最优。经过1 800 ℃烧结2 h,可获得显气孔率为60%,孔径分布为3.90 μm,抗压强度为12.13 MPa的多孔Si3N4陶瓷。采用琼脂作为高价反离子的包覆剂可以包覆各种高价反离子,从而有效改进现有方法,丰富固化剂的选择。

基金项目:
福建省功能材料及应用重点实验室开放基金(fma201701);中央高校基本科研业务费专项资金(2018KFYYXJJ030)
作者简介:
参考文献:

 [1] 李勇霞. 高性能氮化硅的制备及其性能研究[D]. 哈尔滨工业大学, 2013.

LI Yongxia. Study on preparation and properties of high performance silicon nitirde (in Chinese, dissertation). Harbin: Harbin Institute of Technology, 2013.
[2] 李伶. 隐身–透波一体化Si3N4基陶瓷材料的制备与结构设计[D].哈尔滨工业大学, 2018.
LI Ling. Fabrication and design of wave transmission-absorbing integration Si3N4 based ceramics (in Chinese, dissertation). Harbin: Harbin Institute of Technology, 2018.
[3] YIN L Y, ZHOU X G, YU J S, et al. New consolidation process inspired from making steamed bread to prepare Si3N4 foams by protein foaming method[J]. J Eu Ceram Soc, 2013, 33(7): 1387–1392.
[4] YANG J F, ZHANG G J, Naoki Kondo, et al. Synthesis of porous Si3N4 ceramics with rod-shaped pore structure[J]. J Am Ceram Soc, 2010, 88(4): 1030–1032.
[5] LU X, WEI Y, WANG H, et al. Porosity and oxide layer dependence of thermal shock behavior of porous silicon nitride ceramics[J]. J Mater Sci Technol, 2014, 30(12): 1217–1222.
[6] UHLÍ?OVÁ T, GREGOROVÁ E, PABST W, et al. Preparation of cellular alumina ceramics via biological foaming with yeast and its microstructural characterization via stereological relations[J]. J Eul Ceram Soc, 2015, 35(1): 187–196.
[7] 邓健, 姚冬旭, 夏咏锋, 等. 注浆成型结合真空发泡法制备梯度多孔氮化硅陶瓷[J]. 无机材料学报, 2016, 31(08): 865–868.
DENG Jian, YAO Dongxu, XIA Yongfeng, et al. J Inorg Mater (in Chinese), 2016, 31(08): 865–868.
[8] SHAN S Y, YANG J F, GAO J Q, et al. Porous silicon nitride ceramics prepared by reduction–nitridation of silica[J]. J Am Ceram Soc, 2005, 88(9): 2594–2596.
[9] CANO I G, BOROVINSKAYA I P, RODRIGUEZ M A, et al. Effect of dilution and porosity on self-propagating high-temperature synthesis of silicon nitride[J]. J Am Ceram Soc, 2010, 85(9): 2209–2211.
[10] WAN T, YAO D, YIN J, et al. The microstructure and mechanical properties of porous silicon nitride ceramics prepared via novel aqueous gelcasting[J]. Inter J Appl Ceram Technol, 2015, 12(5): 932–938.
[11] WU J M, ZHANG X Y, YANG J L. Novel porous Si3N4 ceramics prepared by aqueous gelcasting using Si3N4 poly-hollow microspheres as pore-forming agent[J]. J Eu Ceram Soc, 2014, 34(5): 1089–1096.
[12] WU J M, ZHANG X Y, XU J, et al. Preparation of porous Si3N4 ceramics via tailoring solid loading of Si3N4 slurry and Si3N4 poly-hollow microsphere content[J]. J Adv Ceram, 2015, 4(4): 260–266.
[13] 冯厚坤. 多孔氮化硅陶瓷的制备及其性能的研究[D]. 江苏大学, 2016.
FENG Houkun. Research on preparation and properties of porous silicon nitride ceramics (in Chinese, dissertation). Zhenjiang: Jiangsu University, 2016.
[14] 杨雪金. 凝胶注模制备多孔氮化硅及其复相陶瓷透波材料的研  究[D]. 国防科学技术大学, 2015.
YANG Xuejin. Fabrication and properties of porous silicon nitride and silicon nitride based composites via gel-casting (in Chinese, dissertation). Changsha: National University of Defense Technology, 2015.
[15] 杨金龙, 许杰, 渠亚男, 等. 陶瓷高价反离子直接凝固注模成型工艺[J]. 真空电子技术, 2014(5): 4–11.
YANG Jinlong, XU Jie, QU Yanan, et al. Vacuum Electr (in Chinese), 2014(5): 4–11.
[16] 谢志鹏, 杨金龙, 黄勇, 等. 陶瓷直接凝固注模成型(DCC)原理及应用[J]. 陶瓷学报, 1997(3): 167–171.
XIE Zhipeng, YANG Jinlong, HUANG Yong, et al. J Ceram (in Chinese), 1997(03): 167–171.
[17] 王小锋, 孙月花, 彭超群, 等. 直接凝固注模成型的研究进展[J]. 中国有色金属学报, 2015, 25(2): 267–279.
WANG Xiaofeng, SUN Yuehua, PENG Chaoqun, et al. Chin J Nonferrous Met (in Chinses), 2015, 25(2): 267–279.
[18] 温宁. 通过缓释高价反离子直接凝固成型陶瓷新工艺的研究[D]. 清华大学, 2011.
WIN Ning. A new direct coagulation casting process via controlled release of high valence counter ions (in Chinese, dissertation). Beijing: Tsinghua University, 2011.
[19] XU J, WEN N, LI H, et al. Direct coagulation casting of alumina suspension by high valence counter ions using Ca(IO3)2 as coagulating agent[J]. J Am Ceram Soc, 2012, 95(8): 2525–2530.
[20] CHEN A N, WU J M, XIAO H, et al. Rapid and uniform in-situ solidification of alumina suspension via a non-contamination DCC-HVCI method using MgO sintering additive as coagulating agent[J]. Ceram Inter, 2017, 43(13): 9926–9933.
[21] 张帆. 琼脂凝胶微球的制备修饰及应用[D]. 北京化工大学, 2015.
ZHANG Fan. Preparation and application of agar microspheres (in Chinese, dissertation). Beijing: Beijing University of Chemical Technology, 2015.
[22] 李琴梅, 戚勃. 琼脂的物化特性及其在食品工业中的应用[J]. 中国食品添加剂, 2009(6): 170–174.
LI Qinmei, QI Bo. China Food Addit (in Chinses), 2009(6): 170–174.
[23] 程文健. 琼脂基微胶囊制备技术研究[D]. 浙江大学, 2011.
CHENG Wenjian. Study of microcapsules preparation based on agar (in Chinese, dissertation). Hangzhou: Zhejiang University, 2011.
[24] 付志英. 壳聚糖包覆水溶性药物微胶囊的制备与表征[D]. 华南理工大学, 2013.
FU Zhiying. The preparation and characterization of microspheres of the water-soluble drugs coated by chitosan (in Chinese, dissertation). Guangzhou: South China University of Technology, 2013.
[25] WU J M, MA Y X, CHENG L J, et al. Isotropic Si3N4 ceramics fabricated by low-pressure spark plasma sintering in combination with direct coagulation casting[J]. Ceram Inter, 2019, 45(7): 8454–8459.
[26] 杨海涛, 汤宇凌, 徐润泽, 等. 氮化硅陶瓷烧结过程中的致密化与相变[J]. 中国有色金属学报, 1996(4): 153–156.
YANG Haitao, TANG Yuling, XU Runze, et al. Chin J Nonferrous Met (in Chinese), 1996(4): 153–156.
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