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Eu3+、Dy3+和Er3+对制备堇青石晶相转变的对比表征

, PP. 148-155

Keywords: Eu2O3,Dy2O3,Er2O3,堇青石,晶相转变

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Abstract:

以菱镁矿风化石、工业Al2O3和SiO2微粉为原料,固相反应烧结合成制备堇青石。通过在反应物中分别加入不同含量的Eu2O3、Dy2O3和Er2O3,研究分析和对比了Eu3+、Dy3+和Er3+对堇青石晶相组成、晶粒大小、晶胞常数、结晶度及显微结构的影响。采用XRD和SEM表征试样中的晶相和显微结构,利用X'PertPlus软件对结晶相的晶胞参数和结晶度进行分析,采用半定量法对试样晶相组成进行计算,利用Scherrer公式计算堇青石的晶粒大小。结果表明:由于Eu2O3、Dy2O3和Er2O3的加入,通过固相反应烧结所得堇青石试样中出现了莫来石相,Eu3+、Dy3+和Er3+对Mg2+的置换作用改变了堇青石相晶格常数和晶胞体积。随着添加剂含量的增加,堇青石结构中液相量增加,相对结晶度降低,常温致密度提高,堇青石晶粒粒径减小。综合对比分析,Eu2O3对堇青石晶相转变的影响程度最弱,Er2O3对堇青石晶相转变的影响程度最强,对提高合成堇青石的烧结性和热震稳定性效果最好。

References

[1]  张 巍, 韩亚苓, 潘斌斌. 堇青石的合成工艺研究及结构特征[J]. 陶瓷学报, 2008, 29(1): 19-23. Zhang Wei, Han Yaling, Pan Binbin. Research on synthesis technique and structure characteristics of cordierite[J]. Chinese Journal of Ceramics, 2008, 29(1): 19-23.
[2]  Ozel E, Kurama S. Effect of the processing on the production of cordierite-mullite composite[J]. Ceramics International, 2010, 36(3): 1033-1039.
[3]  Bejjaoui R, Benhammou A, Nibou L, et al, Synthesis and characterization of cordierite ceramic from Moroccan stevensite and andalusite[J]. Applied Clay Science, 2010, 49(3): 336-340.
[4]  王文瀚, 李晓云, 丘 泰. La2O3对热压烧结Al2O3性能的影响[J]. 复合材料学报, 2011, 28(5): 145-149. Wang Wenhan, Li Xiaoyun, Qun Tai. Effect of La2O3 on properties of Al2O3materials by hot-pressing sintering[J]. Acta Materiae Compositae Sinica, 2011, 28(5): 145-149.
[5]  赵 军, 王宏联, 薛群虎, 等. 煤系高岭土合成堇青石工艺研究[J]. 非金属矿, 2007, 30(1): 17-19. Zhao Jun, Wang Honglian, Xue Qunhu, et al. Study on synthesis of cordierite by coal-series kaolin[J]. Non-Metallic Mines, 2007, 30(1): 17-19.
[6]  Kobayashi Y, Sumi K, Kato E. Preparation of dense cordierite ceramics from magnesium compounds and kaolinite without additives[J]. Ceramics International, 2000, 26(7): 737-743.
[7]  白佳海. 碳化硅-堇青石多孔陶瓷的制备及其性能[J]. 耐火材料, 2006, 40(4): 291-293. Bai Jiahai. Preparation and properties of porous SiC-cordierite ceramics[J]. Refractories, 2006, 40(4): 291-293.
[8]  Zhou J E, Dong Y, Hampshire S, et al. Utilization of sepiolite in the synthesis of porous cordierite ceramics[J]. Applied Clay Science, 2011, 52(3): 328-332.
[9]  Okada K, Ikawa F, Isobe T, et al. Low temperature preparation and machinability of porous ceramics from talc and foamed glass particles[J]. Journal of the European Ceramic Society, 2009, 29(6): 1047-1052.
[10]  Naskar M K, Chatterjee M. A novel process for the synthesis of cordierite (Mg2Al4Si5O18) powders from rice husk ash and other sources of silica and their comparative study[J]. Journal of the European Ceramic Society, 2004, 24(13): 3499-3508.
[11]  Liu S, Zeng Y P, Jiang D. Effects of CeO2 addition on the properties of cordierite-bonded porous SiC ceramics[J]. Journal of the European Ceramic Society, 2009, 29(9): 1795-1802.
[12]  于 岩, 阮玉忠, 吴任平. K2O杂质对铝型材厂工业废渣合成的堇青石材料晶相结构的影响[J]. 材料科学与工艺, 2008, 16(1): 125-127. Yu Yan, Ruan Yuzhong, Wu Renping. Influence of K2O impurity on the crystalline structure of cordierite synthesized from waste aluminum slag[J]. Materials Science & Technology, 2008, 16(1): 125-127.
[13]  Wu W Q, Ruan Y Z, Yu Y. Influence of Fe2O3 impurity on the crystallines structure of cordierite synthesized from waste aluminum slag[J]. Chinese Journal of Structure Chemical, 2005, 24(5): 483-487.
[14]  Ruan Y Z, Wu R P, Yu Y. Influence of TiO2 impurity on the crystalline structure of cordierite synthesized from aluminum slag[J]. Chinese Journal of Structure Chemical, 2005, 24(5): 596-600.
[15]  郭 伟, 陆洪彬, 冯春霞, 等. 以稻壳为硅源和成孔剂合成多孔堇青石陶瓷的研究[J]. 硅酸盐通报, 2011, 30(2): 431-434. Guo Wei, Lu Hongbin, Feng Chunxia. Synthesis of porous cordierite using rice husk as silica source and pore forming agent[J]. Bulletin of the Chinese Ceramic Society, 2011, 30(2): 431-434.
[16]  郭 伟, 陆洪彬, 冯春霞, 等. Nd2O3对以稻壳合成多孔堇青石陶瓷的影响[J]. 人工晶体学报, 2010, 39(4): 1025-1029. Guo Wei, Lu Hongbin, Feng Chunxia, et al. Influence of Nd2O3 on porous cordierite prepared from rice husk[J]. Journal of Synthetic Crystals, 2010, 39(4): 1025-1029.
[17]  Guo W, Lu H B, Feng C X. Influence of La2O3 on preparation and performance of porous cordierite from rice husk[J]. Journal of Rare Earths, 2010, 28(4): 614-617.
[18]  罗旭东, 曲殿利, 张国栋, 等. 菱镁矿风化石与叶腊石合成堇青石的结构表征[J]. 无机化学学报, 2011, 27(3): 434-438. Luo Xudong, Qu Dianli, Zhang Guodong, et al. Structure characterization of cordierite synthesized from decomposed magnesite pyrophyllite[J]. Chinese Journal of Inorganic Chemistry, 2011, 27(3): 434-438.
[19]  Ruan Y Z, Yu Y, Wu R P. Researches on the structure and properties of mullite solid solution made from industrial waste[J]. Chinese Journal of Structure Chemical, 2006, 25(8): 965-970.
[20]  Ruan Y Z, Wu R P, Yu Y. Point defect phenomena of on crystalline structure in some common structural materials[J]. Chinese Journal of Structure Chemical, 2005, 24(9): 1066-1072.
[21]  尹洪峰, 任 耘, 范 强, 等. 反应热压烧结法制备SiC/Ti3SiC2复合材料及其性能[J]. 复合材料学报, 2011, 28(3): 69-73. Yin Hongfeng, Ren Yun, Fan Qiang, et al. Fabrication and properties of SiC/Ti3SiC2 composites by reactive hot pressing sintering[J]. Acta Materiae Compositae Sinica, 2011, 28(3): 69-73.
[22]  Shi Z M, Liang K M, Gu S R. Effects of CeO2 on phase transformation towards cordierite in MgO-Al2O3-SiO2 system[J]. Materials Letters, 2001, 51(1): 68-72.
[23]  Shi Z M, Pan F, Liu D Y, et al. Effect of Ce4+-modified amorphous SiO2 on phase transformation towards α-cordierite[J]. Materials Letters, 2002, 57(2): 409-413.
[24]  梁 莹, 谢有桃, 季 珩, 等. ZrO2改性CaO-SiO2复合生物涂层的制备及表征[J]. 复合材料学报, 2011, 28(1): 77-81. Liang Ying, Xie Youtao, Ji Heng, et al. Preparation and characterization of ZrO2 modified CaO-SiO2 bio-composite coatings[J]. Acta Materiae Compositae Sinica, 2011, 28(1): 77-81.

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