|
OALib Journal期刊
ISSN: 2333-9721
费用：99美元
|
|
|
|
bi2o3掺杂对ni-mn-o基ntc热敏陶瓷显微结构及电性能的影响
DOI: 10.3969/j.issn.1671-7627.2014.06.001, PP. 1-6
Keywords: ntc热敏陶瓷,尖晶石,固相配位法,bi2o3,电性能
Abstract:
采用固相配位反应法制备ni0.6bixmn2.4-xo4(0≤x≤0.1)热敏陶瓷。采用x线衍射仪(xrd)、扫描电子显微镜(sem)、能谱仪(eds)和阻抗分析仪对陶瓷的相结构、显微结构、元素分布和电性能进行表征。结果表明:少量添加bi2o3能显著提高材料的烧结性能,在1000℃下达到致密化。在x=0时,材料保持单相立方尖晶石结构,当x≥0.02时,有杂相bi2o3、bi3.64ni0.36o5.82、bi7.47ni0.53o11.73及bi2ni2o5相继出现。随着bi3+掺杂量的增加,陶瓷晶粒尺寸先增大后减小,伴随着显微结构的变化,材料的电阻率先减小后增大,材料常数b先增大后减小。
| [1] | toriiy,tsuzukia,katok,etal.chemicalprocessingandcharacterizationofspinel-typethermistorpowderinthemn-ni-feoxidesystem[j].journalofmaterialsscience,1996,31(10):2603-2607.
|
| [2] | fangdl,leecg,koobh.preparationofultra-finefenimno4powdersandceramicsbyasolid-statecoordinationreaction[j].metalsandmaterialsinternational,2007,13(2):165-170.
|
| [3] | yokoyamat,megurot,shimaday,etal.preparationandelectricalpropertiesofsinteredoxidescomposedofmn1.5co(0.25+x)ni(1.25-x)o4(0≤x≤0.75)withacubicspinelstructure[j].journalofmaterialsscience,2007,42(14):5860-5866.
|
| [4] | yokoyamat,megurot,nakamuram,etal.fabricationandelectricalpropertiesofsinteredbodiescomposedofmn(1.75-1.25x)co2.5xni1.25(1-x)o4(0≤x≤0.6)withacubicspinelstructure[j].journalofceramicprocessingresearch,2009,10(5):683-688.
|
| [5] | feteiraa.negativetemperaturecoefficientresistance(ntcr)ceramicthermistors:anindustrialperspective[j].journaloftheamericanceramicsociety,2009,92(5):967-983.
|
| [6] | sickafuske,willsjm,grimesnw.structureofspinel[j].journaloftheamericanceramicsociety,1999,82(12):3279-3292.
|
| [7] | degyörgyfalvagdcc,reaneyim.decompositionofnimn2o4spinel:anntcthermistormaterial[j].journaloftheeuropeanceramicsociety,2001,21(10/11):2145-2148.
|
| [8] | sarriónm,moralesm.preparationandcharacterizationofntcthermistorsbasedonfe2+δmn1-x-δnixo4[j].journalofmaterialsscience,1995,30(10):2610-2615.
|
| [9] | 徐卫良,陈秀娟,杨建,等.b2o3对ycazrvig铁氧体微结构及性能的影响[j].人工晶体学报,2013,42(2):340-344.
|
| [10] | wangw,liux,zhaom,etal.effectofv2o5additiveonthemicrostructureandelectricalpropertiesofmn-co-niontcthermistor[j].keyengineeringmaterials,2007,336-338:743-745.
|
| [11] | wickhamdg.solid-phaseequilibriainthesystemnio-mn2o3-o2[j].journalofinorganicandnuclearchemistry,1964,26(8):1369-1377.
|
| [12] | 王卫民,魏少红,杜记民,等.bi2o3对mnconio基ntc热敏半导体陶瓷显微结构和电性能影响[j].人工晶体学报,2009,38(增):316-320.
|
| [13] | 张其土.无机材料科学基础[m].上海:华东理工大学出版社,2007:81-82.
|
| [14] | kingerywd,bowenhk,uhlmanndr.introductiontoceramics[z].2nded.singapore:johnwiley&sons,2004.
|
| [15] | torikain,megurot,sasamotot,etal.preparationoffineparticlesofspinel-typemn-co-nioxidebyfreeze-drying[j].journalofthechemicalsocietyofjapan,1984,6:785-791.
|
| [16] | varghesejm,seemaa,dayaskr.microstructural,electricalandreliabilityaspectsofchromiumdopedni-mn-fe-ontcthermistormaterials[j].materialsscienceandengineering:b,2008,149(1):47-52.
|
| [17] | zhangh,changa,pengc.preparationandcharacterizationoffe3+-dopedni0.9co0.8mn1.3-xfexo4(0≤x≤0.7)negativetemperaturecoefficientceramicmaterials[j].microelectronicengineering,2011,88(9):2934-2940.
|
| [18] | 苏树兵,宋世庚,郑应智,等.comncuo系ntc热敏电阻的复阻抗分析[j].材料科学与工程,2002,20(3):386-389.
|
| [19] | metzr.electricalpropertiesofntcthermistorsmadeofmanganiteceramicsofgeneralspinelstructure:mn3-x-x’mxnx’o4(0≤x+x’≤1;mandnbeingni,coorcu):agingphenomenonstudy[j].journalofmaterialsscience,2000,35(18):4705-4711.
|
| [20] | kanadesa,puriv.propertiesofthickfilmni0.6co0.4feymn2-yo4:(0≤y≤0.5)ntcceramic[j].journalofalloysandcompounds,2009,475(1/2):352-355.
|
| [21] | parkk,kimsj,kimjg,etal.structuralandelectricalpropertiesofmgo-dopedmn1.4ni1.2co0.4-xmgxo4(0≤x≤0.25)ntcthermistors[j].journaloftheeuropeanceramicsociety,2007,27(4):2009-2016.
|
| [22] | mac,liuy,luy,etal.preparationandcharacterizationofni0.6mn2.4o4ntcceramicsbysolid-statecoordinationreaction[j].journalofmaterialsscience:materialsinelectronics,2013,24(12):5183-5188.
|
Full-Text
|
|
Contact Us
service@oalib.com QQ:3279437679 
WhatsApp +8615387084133
|
|
