不同喷涂工艺对Cr~(3+)掺杂Al_2O_3陶瓷涂层相结构及发光性能影响研究
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摘要
通过火焰喷涂工艺和等离子喷涂工艺制备了Cr~(3+)掺杂Al_2O_3陶瓷涂层。采用扫描电镜、X射线衍射、荧光光谱仪等方法表征了涂层的微观形貌、孔隙率、相结构及发光性能等。对比两种不同工艺制备的Cr~(3+)掺杂Al_2O_3陶瓷涂层性能结果表明:等离子喷涂制备的涂层形貌、颗粒熔化状态、厚度均一性均优于火焰喷涂涂层,但火焰喷涂工艺涂层的发光性能远优于等离子工艺涂层,其原因是火焰喷涂制备的涂层中Al_2O_3粒子的熔融状态更差,保留了更多的α-Al_2O_3相,未熔粒子部分将以喷涂原粉中稳定的α-Al_2O_3结构存在涂层中进而影响其光学性能。
Cr~(3+) doped Al_2O_3 ceramic coatings were deposited by flame spraying and plasma spraying. Scanning electron microscopy, X-ray diffraction and fluorescence spectrometry were employed to characterize the microstructure, porosity, phase structure and luminescence properties of the coatings. The comparison of Cr~(3+)doped Al_2O_3 ceramic coatings prepared by two different process shows that the coating morphology, particle melting state and thickness uniformity prepared by plasma spraying are all superior to those of flame spray coating, but the optical properties of the flame spray coating are much better than the plasma spraycoating.The reason may be the Al_2O_3 particles in the flame sprayed coating are not fully melted and retained more α-Al_2O_3 phase.The unmelted particles in the coating still remain the stable α-Al_2O_3 structure as it was in original powder and thus affects the optical properties.
Cr~(3+) doped Al_2O_3 ceramic coatings were deposited by flame spraying and plasma spraying. Scanning electron microscopy, X-ray diffraction and fluorescence spectrometry were employed to characterize the microstructure, porosity, phase structure and luminescence properties of the coatings. The comparison of Cr~(3+)doped Al_2O_3 ceramic coatings prepared by two different process shows that the coating morphology, particle melting state and thickness uniformity prepared by plasma spraying are all superior to those of flame spray coating, but the optical properties of the flame spray coating are much better than the plasma spraycoating.The reason may be the Al_2O_3 particles in the flame sprayed coating are not fully melted and retained more α-Al_2O_3 phase.The unmelted particles in the coating still remain the stable α-Al_2O_3 structure as it was in original powder and thus affects the optical properties.
引文
[1]李友凤,周继承.氧化铝纳米材料的制备与应用[J]．硬质合金,2003,20(4):244-245.
[2]Deng J X,Ai X.Friction and wear behavior of Al2O3based ceramic materials[J].Chinese Journal of Materials Research,1997,11(3):252-258.
[3]李淑凤,李成仁,宋昌烈.掺Er及Yb-Er共掺Al2O3光波导放大器的理论与实验研究[J].光子学报,2007,27(5):928-934.
[4]孙德明.Al2O3/Cr3C2多元复合陶瓷材料的制备、性能及应用研究[D].济南:山东大学,2006.
[5]孙乃坤,高印博,杨健等.Cr3+离子掺杂对Al2O3粉末结构及发光性能影响[J].材料研究学报,2011,25(5):557-560.
[6]王兴军.稀土掺杂氧化铝结构对光致发光特性的影响研究[D].大连:大连理工大学,2004.
[7]陈玮.α-Al2O3形成过程显微结构演变及其调控[D].长沙:中南大学,2010.
[8]梁天骄,纪全,魏少红,等.一种散裂中子源用的粒子束影像涂层及其制备方法：中国,201510185400.9[P].2015.4.17[2018.04.06].
[9]酉琪,彭浩然,张鑫，等.Cr3+掺杂Al2O3陶瓷粉体火焰喷涂工艺探究[J].热喷涂技术,2015,7(3):42-46.
[10]马东林,贺毅,王兰,等.等离子喷涂氧化铝涂层的热震性能及微观组织特征[J].热材料热处理技术,2011,40(4):101-105.
[11]杨凯,周霞明,赵华玉,等.等离子体喷涂Al2O3-Cr2O3复合涂层耐磨性能研究[C]//.第十五届国际热喷涂研讨会（ITSS’2012）暨第十六届全国热喷涂年会（CNTSC’2012）论文集.2012:72-79.
[12]曾智江,杨秋红,徐军.Cr3+:Al2O3透明多晶陶瓷光谱特性分析[J].物理学报,2005,54(11):5445-5448.
[13]米晓云,张希艳,卢歆.共沉淀法合成Cr3+:Al2O3纳米粉体及其发光性能研究[J].无机化学学报,2007,23(10):1819-1823.
[2]Deng J X,Ai X.Friction and wear behavior of Al2O3based ceramic materials[J].Chinese Journal of Materials Research,1997,11(3):252-258.
[3]李淑凤,李成仁,宋昌烈.掺Er及Yb-Er共掺Al2O3光波导放大器的理论与实验研究[J].光子学报,2007,27(5):928-934.
[4]孙德明.Al2O3/Cr3C2多元复合陶瓷材料的制备、性能及应用研究[D].济南:山东大学,2006.
[5]孙乃坤,高印博,杨健等.Cr3+离子掺杂对Al2O3粉末结构及发光性能影响[J].材料研究学报,2011,25(5):557-560.
[6]王兴军.稀土掺杂氧化铝结构对光致发光特性的影响研究[D].大连:大连理工大学,2004.
[7]陈玮.α-Al2O3形成过程显微结构演变及其调控[D].长沙:中南大学,2010.
[8]梁天骄,纪全,魏少红,等.一种散裂中子源用的粒子束影像涂层及其制备方法：中国,201510185400.9[P].2015.4.17[2018.04.06].
[9]酉琪,彭浩然,张鑫，等.Cr3+掺杂Al2O3陶瓷粉体火焰喷涂工艺探究[J].热喷涂技术,2015,7(3):42-46.
[10]马东林,贺毅,王兰,等.等离子喷涂氧化铝涂层的热震性能及微观组织特征[J].热材料热处理技术,2011,40(4):101-105.
[11]杨凯,周霞明,赵华玉,等.等离子体喷涂Al2O3-Cr2O3复合涂层耐磨性能研究[C]//.第十五届国际热喷涂研讨会（ITSS’2012）暨第十六届全国热喷涂年会（CNTSC’2012）论文集.2012:72-79.
[12]曾智江,杨秋红,徐军.Cr3+:Al2O3透明多晶陶瓷光谱特性分析[J].物理学报,2005,54(11):5445-5448.
[13]米晓云,张希艳,卢歆.共沉淀法合成Cr3+:Al2O3纳米粉体及其发光性能研究[J].无机化学学报,2007,23(10):1819-1823.