为降低片式多层陶瓷电容器(MLCC)的成本,研究了适宜低温烧结的陶瓷复合材料配方.向钛酸钡中添加不同的无机填料,对浆料进行球磨,然后将研磨好的浆料进行压片,低温烧结,制备出适宜低温烧结的陶瓷复合材料,并对其形貌、强度、介电性能和工艺进行研究.结果表明:添加水玻璃和无机硅胶能使钛酸钡烧结后形成致密的片材强度大、硬度高、不易碎裂;而添加石墨和蒸馏水则不易形成稳定型片材,强度差;添加水玻璃可以使复合材料的介电常数显著增加,水玻璃的最佳添加量为3%.
To reduce the cost of multilayer ceramic capacitors(MLCC), a series of experiment formula of barium titanate ceramic composites suitable for low-temperature sintering were studied. The barium tita-nate ceramic composites suitable for low-temperature sintering were prepared by adding various inorganic fillers to the barium titanate and milling the slurry, then pelleting the milled slurry and sintering at low-temperature. The morphology, strength, dielectric properties and processibility were then studied. The results show that the barium titanate adding water glass and inorganic silica after sintering can form com-pact sheet materials with high strength and hardness and without fragmentation. While the addition of graphite and distilled water can not form sheet material with good stability and strength. The addition of water glass can increase the permittivity of the composites and the optimum dosage is 3%.
参考文献
| [1] | 刘岗,严岩,王峰,彭万军,陈维,陈寿田.电子陶瓷用钛酸钡粉体制备方法研究进展[J].绝缘材料,2006(01):56-58,63. |
| [2] | 赵丽华,于开坤,郭相国,宁叔帆.分散剂对钛酸钡介电性能的影响[J].绝缘材料,2005(01):24-26. |
| [3] | 吴学明,马寒冰,唐安斌,杨波.环氧树脂/导电聚苯胺/钛酸钡复合材料研究[C].2006年全国绝缘材料与绝缘技术专题研讨会论文集,2006:85-88. |
| [4] | 志敏;沈洋;范丽珍 等.不同填料填充的聚合物复合材料的介电性能研究[J].稀有金属材料与工程,2002,31(09):429-433. |
| [5] | 唐小锋,周志刚.低温烧结高居里点PTC陶瓷的研究[J].压电与声光,1999(05):354-359. |
| [6] | Dang Z M;Lin Y H;Nan C W .Novel Ferroelectric Poly-mermatrix Composites with a High Dielectric Constant at the Percolation Threshold[J].Advanced Materials,2003,15(19):1625-1629. |
| [7] | Tsangarris G M;Psarras G C;Kouloumbi N .Evalution of the Dielectric Behavior of Particulate Composites Consisting of a Polymeric Matrix and a Conductive Filler[J].Materials Science and Technology,1996,12:533. |
| [8] | Mezzenga R.;Ruokolainen J.;Fredrickson GH.;Kramer EJ.;Moses D.;Heeger AJ.;Ikkala O. .Templating organic semiconductors via self-assembly of polymer colloids[J].Science,2003(5614):1872-1874. |
| [9] | 保罗 A;唐炳文.玻璃化学[M].武昌:武汉工业大学出版社,1993 |
| [10] | 杜锋涛,赵俊英,畅柱国,崔斌,唐宗薰.低烧钛酸钡基介电陶瓷的研究进展[J].材料科学与工程学报,2009(02):324-328. |
| [11] | 肖谧,李玲霞,崔靖杰,吴霞宛.硼铅锌系玻璃对细晶BaTiO3基陶瓷系统介电性能影响的研究[J].硅酸盐学报,2001(01):54-58. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%