Effect of Temperature on High-Temperature Melt Structure of La2O3-SiO2-CaO-Al2O3-MgO System AITranslate
Abstract AITranslate
The continuous cooling in the casting process of rare earth glass-ceramics would change the microstructure of the melt.Through Raman,XRD,and SEM-EDS,samples with different quenching temperatures(1550~1100℃)were analyzed to study the effect of temperature on high-temperature melt structure of La2O3-SiO2-CaO-Al2O3-MgO system.The results show that the quenched samples are amorphous at high temperatures and crystalline at relatively low temperatures.After the decomposition of Raman spectra of amorphous quenched samples,it is found that with the temperature decreasing,the Raman peak positions of the basic structural unit of each silicon oxygen/aluminum oxygen tetrahedron have a shift towards the high frequency.The shift of the peak positions of the low-frequency(200~800 cm-1)structural unit is large while that of the high-frequency(800~1200 cm-1)structural unit is small,and La2O3inhi-bits the peak positions of each structural unit from shifting towards the high frequency.The results of XRD and SEM-EDS show that the addition of La2O3reduces the temperature at which CaMg(SiO3)2crystalline phase is produced in La2O3-SiO2-CaO-Al2O3-MgO melt.
KeyWords AITranslate
1左成钢,卢安贤,肖卓豪,李秀英,朱立刚.Ce^(3+)和Tb^(3+)掺杂的BaO-La_2O_3-B_2O_3-SiO_2玻璃的发光性质[J].中南大学学报：自然科学版,2009,40(6):1522-1528. 被引量：7
2刘道春,崔利军.玻璃陶瓷的研究与发展[J].陶瓷,2019,0(11):18-24. 被引量：2
3史培阳,姜茂发,刘承军,王德永.CaO-Mg-OAl_2O_3-SiO_2系微晶玻璃晶化和性能[J].东北大学学报：自然科学版,2004,25(12):1169-1172. 被引量：14
4迟玉山,沈菊云,陈学贤,缪之训.La_2O_3在MgO-Al_2O_3-SiO_2-TiO_2微晶玻璃中的作用[J].无机材料学报,2002,17(2):348-352. 被引量：14
5陈华,李保卫,赵鸣,张雪峰,贾晓林,杜永胜.La^(3+)存在形式对白云鄂博稀选尾矿微晶玻璃性能的影响[J].物理学报,2015,64(19):239-246. 被引量：12
6吴永全,蒋国昌,尤静林,陈辉.非晶态硅酸盐微观结构的研究进展[J].硅酸盐学报,2004,32(1):57-62. 被引量：6
7杜永胜,杨晓薇,张红霞,欧阳顺利,李保卫.稀土La_2O_3对尾矿微晶玻璃显微结构和裂纹扩展行为的影响[J].材料研究学报,2018,32(2):97-104. 被引量：10
8吴永全,尤静林,蒋国昌,陈辉.CaSiO_3从熔体到玻璃的结构和拉曼光谱性质研究[J].无机化学学报,2004,20(2):133-138. 被引量：6
9李保卫,欧阳顺利,张雪峰,贾晓林,邓磊波,刘芳.温度对CaO-MgO-Al_2O_3-SiO_2系纳米晶玻璃陶瓷结构影响的拉曼光谱研究[J].光谱学与光谱分析,2014,34(7):1869-1872. 被引量：8
10王晨阳,尤静林,王媛媛,刘晓伟,刘钦,王静.二元钠硅酸盐玻璃及其熔体微结构的高温拉曼光谱及核磁共振研究[J].光散射学报,2014,26(4):350-355. 被引量：6
1马菱薇,卢桃丽,张达威,卢琳.耐候钢锈层的稳定化处理及锈层的生长机制[J].中国表面工程,2022,35(4):151-160. 被引量：1
2顾帅威,张纬,陈阵,王海名,由长福.低品位石灰石溶解特性及动力学模型[J].化工学报,2022,73(12):5547-5554.
3谢志辉,张跃,梁智明,程圣,陈雪冰,亢健.二氧化硅/氧化石墨烯杂化改性对环氧树脂固化动力学的影响[J].塑料工业,2022,50(12):46-51. 被引量：2
4初蕊,翁凌,关丽珠,王小明.ZIF-67/PVDF复合薄膜的制备及介电性能[J].绝缘材料,2023,56(2):32-38.
5韩笑,青明,王洪,于欣,索海云,沈先锋,杨勇,李永旺.费托合成铁基催化剂中Fe_(3)O_(4)含量对CO_(2)选择性的影响[J].燃料化学学报（中英文）,2023,51(2):155-164.
6王瑾妍,杜奇妙,刘乔.壳聚糖衍生多孔炭的制备及其电容特性研究[J].宁波工程学院学报,2022,34(4):8-15.
7秦秀雨,钱炳旭,邢帅亮,李永昕.双功能氧化石墨烯制备Pickering乳液用于Knoevenagel缩合[J].石油化工,2023,52(1):29-36.
8刘文庆,王平.Raman光谱及DR技术在可移动文物追溯中的实验研究[J].陶瓷学报,2022,43(6):1105-1112.
9屈婧婧,苏琪,刘飞,沈乃瑞,袁昌来,刘笑,蒙柳方.BaBiO_(3)陶瓷靶材的烧制工艺优化及其晶粒生长机制[J].硅酸盐学报,2022,50(12):3222-3229.
10李文菁,黄月群,庞荣聪,黄亮亮,朱亮,王才广.北部湾海洋鱼类微塑料的分离、鉴定及其特征分析[J].环境科学与技术,2022,45(11):118-127.
Basic Information:
DOI：
Chinese Library Classification Number:TQ171.1[化学工程—玻璃工业]
Citation Information:
The continuous cooling in the casting process of rare earth glass-ceramics would change the microstructure of the melt.Through Raman,XRD,and SEM-EDS,samples with different quenching temperatures(1550~1100℃)were analyzed to study the effect of temperature on high-temperature melt structure of La2O3-SiO2-CaO-Al2O3-MgO system.The results show that the quenched samples are amorphous at high temperatures and crystalline at relatively low temperatures.After the decomposition of Raman spectra of amorphous quenched samples,it is found that with the temperature decreasing,the Raman peak positions of the basic structural unit of each silicon oxygen/aluminum oxygen tetrahedron have a shift towards the high frequency.The shift of the peak positions of the low-frequency(200~800 cm-1)structural unit is large while that of the high-frequency(800~1200 cm-1)structural unit is small,and La2O3inhi-bits the peak positions of each structural unit from shifting towards the high frequency.The results of XRD and SEM-EDS show that the addition of La2O3reduces the temperature at which CaMg(SiO3)2crystalline phase is produced in La2O3-SiO2-CaO-Al2O3-MgO melt.
quote
| GB/T 7714-2015 | [1] WU Jun, GUO Wen-tao, LIU Xin-kun, et al. Effect of Temperature on High-Temperature Melt Structure of La2O3-SiO2-CaO-Al2O3-MgO System[J]. Rare Metals and Cemented Carbides, 2022(6): 52-58. |
| MLA | [1] WU Jun, et al., "Effect of Temperature on High-Temperature Melt Structure of La2O3-SiO2-CaO-Al2O3-MgO System." Rare Metals and Cemented Carbides, no. 6, 2022, pp. 52-58. |
| APA | [1] WU Jun, GUO Wen-tao, LIU Xin-kun, ZHAO Zeng-wu, & LIU Bao-yu. (2022). Effect of Temperature on High-Temperature Melt Structure of La2O3-SiO2-CaO-Al2O3-MgO System. Rare Metals and Cemented Carbides(6), 52-58. |
| IEEE | [1] WU Jun, GUO Wen-tao, LIU Xin-kun, ZHAO Zeng-wu, and LIU Bao-yu, "Effect of Temperature on High-Temperature Melt Structure of La2O3-SiO2-CaO-Al2O3-MgO System," Rare Metals and Cemented Carbides, no. 6, pp. 52-58, 2022. keywords: {Raman spectrum;temperature;LaO;quenching;glass-ceramics;CaMg(SiO);SiO-CaO-AlO-MgO} |