在微米氮化铝粉体中添加含量为4％的Y2O3和不同含量的纳米AlN粉体制备氮化铝陶瓷,研究了Y2O3和纳米AlN协同作用对微米氮化铝陶瓷烧结性能和热传导性能的影响.结果表明,Y2O3优先与纳米AlN粉体表面的Al2O3反应生成活性较高的第二相Al5Y3O12,相比于Y2O3与微米AlN粉体表面Al2O3反应生成的Al5Y3O12,具有更低的熔化温度及更好的流动性;同时,纳米AlN粉体的高比表面能也促进氮化铝陶瓷的致密化进程.二者的协同作用有效地促进氮化铝陶瓷的致密烧结,改善第二相的微观分布,从而能在较低的烧结温度下获得具有较高热导率的氮化铝陶瓷.当Y2O3和纳米AlN粉体的添加量(质量分数)分别为4％和1.5％时,在1800℃烧结得到的氮化铝陶瓷密度为3.26 g·cm-3,第二相以连续相的形式分布于氮化铝晶界处,热导率为151.75 W/(m·K).
AlN ceramics doped with 4％ Y2O3 and appropriate nano-AlN powders were sintered at 1700-1850C,the influences of Y2O3 and nano-AlN powders on the sintering and thermal conductivity of AlN ceramics were investigated.The results show that the Al2O3 powders distributed in the surface of nano-AlN took the priority to react with Y2O3,and second phase of Al5Y3O12 with higher activity were gotten,which could form liquid at lower temperature.In addition,the nano-AlN powders can also promote the density of AlN ceramics.The two factors have a synergetic action on the sintering of AlN ceramics,and can improve the distribution of second phase in the microstructure of AlN ceramics.Therefore,AlN ceramics with higher thermal conductivity can be prepared at lower sintering temperature.The AlN ceramics with 4％ Y2O3 and 1.5％ nano-AlN doped,sintered at 1800℃ have a density of 3.26 g·cm-3and a thermal conductivity of 151.75 W/(m·K),and second phase distributes in the boundaries of AlN grains.
参考文献
| [1] | MENG Xianfeng,LU Chunhua,NI Yaru,XU Zhongzi,Advances in study on Aluminum nitride packaging materials,Materials Review,17(3),35(2003)(孟献丰,陆春华,倪亚茄,许仲梓,AlN基板研究进展,材料导报,17(3),35(2003)) |
| [2] | CAI Ruiqi,LI Liming,XU Zheng,Application of electronic ceramics in MCM,Advanced Ceramics,3,26(2005)(蔡瑞琦,李黎明,徐政,电子陶瓷材料在多芯片组件(MCM)中的应用,现代技术陶瓷,3,26(2005)) |
| [3] | YIN Luqiao,Investigations of advanced packaging technology and reliabitily of high power light emitting diode,Doctor Dissertation,Shanghai University(2011)(殷录桥,大功率LED先进封装技术及可靠性研究,博士学位论文,上海大学(2011)) |
| [4] | Goyala R K,Tiwarib A N,Negi Y S,High performance polymer/AlN composites for electronic substrate application,Composites Part B:Engineering,47,70(2013) |
| [5] | Yin S,Tseng K J,Zhao J,Design of AlN-based micro-channel heat sink in direct bond copper for power electronics packaging,Applied Thermal Engineering,52(1),120(2013) |
| [6] | Taylor K M,Camille L,Some properties of aluminum nitride,Journal of the Electrochemical Society,107(4),308(1960) |
| [7] | Joanna R G,Subhash H.R,Kazuo Y,Plasma activated sintering of additive-free AlN powders to near-theoretical density in 5 minutes,Journal of Material Research,7(10),2643(1992) |
| [8] | DUAN Chengjun,YANG Dongsheng,JIA Chunlei,WANG Qun,Spark plasma sintering of aluminum nitride,Journal of The Chinese Ceramic Society,31(4),389(2003)(段成军,杨东升,贾春雷,王群,放电等离子烧结AlN陶瓷,硅酸盐学报,31(4),389(2003)) |
| [9] | XIONG Yan FU Zhengyi WANG Yucheng,Fabrication of transparent AlN ceramics by spark plasma sintering,Chinese Journal of Materials Research,19(5),555(2005)(熊焰,傅正义,王玉成,放电等离子烧结制备透明AlN陶瓷,材料研究学报,19(5),555(2005)) |
| [10] | Hsieh C U,Lin C N,Chung S L,Chung S L,Cheng J P,Agrawal D.K.,Microwave sintering of AlN powder synthesized by a SHS method,Journal of the European Ceramic Society,27(1),343(2007) |
| [11] | XU Xirrui,ZHUANG Hanrui,XU Suying,LI Wenlan,WU Fengying,Microstructure and thermal conductivity of AlN ceramics with addition of Sm2O3,Chinese Journal of Materials Research,15(3),313(2001)(许昕睿,庄汉锐,徐素英,等.添加Sm2O3的AlN陶瓷的显微结构和导热性能,材料研究学报,15(3),313(2001)) |
| [12] | HUANG Xiaoli,MA Qingzhi,LI Fa,LIU Huiqing,Influence of CaO-Y2O3 as sintering aid on the microstructure and properties of aln ceramics,Journal of Inorganic Materials,17(2),27(2002)(黄小丽,马庆智,李发,CaO-Y2O3添加剂对AlN陶瓷显微结构及性能的影响,无机材料学报,17(2),27(2002)) |
| [13] | HUANG Xiaoli,HU Xiaoqing,Research on low-temperature sintering of A1N ceramics,Ordnance Material Science and Engineering,29(4),15(2006)(黄小丽,胡晓青.氮化铝陶瓷的低温烧结研究,兵器材料科学与工程,29(4),15(2006)) |
| [14] | Du X L,Qin M L,Farid A,Islam S.,Qu x.H.,Study of rare earth oxide sintering aid systems for AlN ceramics,Materials Science Engineering A,460-461,47(2007) |
| [15] | Yao Y J,Qiu T,Effects of behaviors of aluminum nitride ceramics with rare earth oxide additives,Journal of Rare Earths,25,58(2007) |
| [16] | Shoichi K,Masaki Y,Naoki O,Koji W,Effect of MgO addition on the density and dielectric loss of AlN ceramics sintered in presence of Y2O3,Journal of the European Ceramic Society,25,2791(2005) |
| [17] | Yu Y D,Aase M H,Ragnvsld H,Rafal E D,Mari-Ann E,Microstructual characterization and microstructual effects on the thermal conductivity of AlN(Y2O3) ceramics,Journal of the European Ceramic Society,25,247(2002) |
| [18] | Hiroya A,Kazuyoshi S,Makio N,Kiyoshi N,Tadashi H,Jun-ichi T,Katsutoshi K,Effects of granule compaction procedures on defect structure,fracture strength and thermal conductivity of AlN ceramics,Powder Technology,159(3),155(2005) |
| [19] | Panchula M L,Ying J Y,Nanocrystalline aluminum nitride:Ⅱ,sintering and properties,Journal of the American Ceramic Society,86(7),1121(2003) |
| [20] | Watari K,Brito M E,Yasuoka M,Valecillos M C,Kanzaki S,Influence of powder characteristics on sintering process and thermal conductivity of aluminum nitride ceramics,Journal of the Ceramic Society of Japan,103(9),891(1995) |
| [21] | Kuramoto N,Taniguchi H,Aso I,Sintering and properties of highpurity AlN ceramics,Advanced Ceramics,26,107(1989) |
| [22] | CHEN Guangle,FAN Shigang,ZHAO Chunxia,LIU Jie,HE Can,The X ray diffraction analysis of AlN powder by precursor preparation and nitrified carbothermal reduction process,Vacuum Electronics,2,45(2009)(陈广乐,范仕刚,赵春霞,刘杰,何粲,前驱体制备与氮化还原法合成AlN粉体的物相分析,真空电子技术,2,45(2009)) |
| [23] | QIN Mingli,DU Xueli,LI Shuai,SUN Wei,QU Xuarhui,Preparation of AlN powders from precipitated precursor,The Chinese Journal of Nonferrous Metals,15(12),1975(2005)(秦明礼,杜学丽,李帅,孙伟,曲选辉,沉淀前驱物制备AlN陶瓷粉末,中国有色金属学报,15(12),1975(2005)) |
| [24] | Kingsley J J,Patil K C.A novel combustion process for the synthesis of fine particle-aluminum and related oxide materials,Material Letters,11/12(6),427(1988) |
| [25] | Qin M L,Du X L,Li Z X,Islam S H,Qu x H,Synthesis of aluminum nitride powder carbothermal reduction of a combustion synthesis precursor,Materials Research Bulletin,43(11),2954(2008) |
| [26] | Sakai T,Iwate M,Effect of oxygen on sintering of AlN,Journal of Materials Science,12,1659(1997) |
| [27] | Noboru H,Hiroyoshi Y,Sintering behavior of fine aluminum nitride synthesized from aluminum polynuclear complexes,Journal of the American Ceramics society,75(8),2098(1992) |
| [28] | Mamoru O.Sintering,consolidation,reaction and crystal growth by the spark plasma system (SPS),Materials Science and Engineering:A,287(2),183(2000) |
| [29] | Yang Q H,Wang H P,Zhang W J,Wang S F,Xu S Q,Synthesis and characterization of nano-sized AlN powders by CRN route from a sol-gel low temperature combustion precursor,.Advanced Materials Research,557-559,644(2012) |
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