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The proposed samples were sintered at 1400\u00b0C for 2\u2009h with conventional ceramic processing method. By X-ray diffraction, SnO\n                    <jats:sub>2<\/jats:sub>\n                    cassiterite phase was found in all the samples, and no extra phases were identified in the detection limit. The doping of ZrO\n                    <jats:sub>2<\/jats:sub>\n                    would degrade the densification of the varistor ceramics but inhibit the growth of SnO\n                    <jats:sub>2<\/jats:sub>\n                    grains. In the designed range, varistors with 1.0\u2009mol% ZrO\n                    <jats:sub>2<\/jats:sub>\n                    presented the maximum nonlinear exponent of 15.9 and lowest leakage current of 110\u2009\n                    <jats:italic>\u03bc<\/jats:italic>\n                    A\/cm\n                    <jats:sup>2<\/jats:sup>\n                    , but the varistor voltage increased monotonously with the doping amount of ZrO\n                    <jats:sub>2<\/jats:sub>\n                    .\n                  <\/jats:p>","DOI":"10.1155\/2014\/754890","type":"journal-article","created":{"date-parts":[[2014,1,20]],"date-time":"2014-01-20T16:04:46Z","timestamp":1390233886000},"page":"1-5","source":"Crossref","is-referenced-by-count":8,"title":["Microstructure and Nonohmic Properties of SnO\n                    <sub>2<\/sub>\n                    -Ta\n                    <sub>2<\/sub>\n                    O\n                    <sub>5<\/sub>\n                    -ZnO System Doped with ZrO\n                    <sub>2<\/sub>"],"prefix":"10.1155","volume":"2014","author":[{"given":"Xiuli","family":"Fu","sequence":"first","affiliation":[{"name":"School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Feng","family":"Jiang","sequence":"additional","affiliation":[{"name":"School of Engineering and Technology, China University of Geosciences, Beijing 100083, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ruichao","family":"Gao","sequence":"additional","affiliation":[{"name":"School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China"},{"name":"School of Engineering and Technology, China University of Geosciences, Beijing 100083, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8241-1799","authenticated-orcid":true,"given":"Zhijian","family":"Peng","sequence":"additional","affiliation":[{"name":"School of Engineering and Technology, China University of Geosciences, Beijing 100083, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","reference":[{"key":"1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jeurceramsoc.2007.06.011"},{"key":"2","doi-asserted-by":"publisher","DOI":"10.1002\/pssa.200925304"},{"key":"3","first-page":"274","volume":"25","year":"1989","journal-title":"Inorganic Materials"},{"key":"4","doi-asserted-by":"publisher","DOI":"10.1007\/BF00253373"},{"key":"5","doi-asserted-by":"publisher","DOI":"10.1016\/j.ssi.2011.02.012"},{"key":"6","doi-asserted-by":"publisher","DOI":"10.1111\/j.1551-2916.2005.00095.x"},{"key":"7","doi-asserted-by":"publisher","DOI":"10.1016\/j.matchemphys.2005.05.014"},{"key":"8","doi-asserted-by":"publisher","DOI":"10.1016\/j.ceramint.2004.08.009"},{"key":"9","doi-asserted-by":"publisher","DOI":"10.1016\/j.jallcom.2005.05.041"},{"key":"10","doi-asserted-by":"publisher","DOI":"10.1007\/s10853-005-1709-1"},{"key":"11","doi-asserted-by":"publisher","DOI":"10.1016\/j.jallcom.2003.12.055"},{"key":"12","doi-asserted-by":"publisher","DOI":"10.1016\/S0272-8842(01)00014-1"},{"key":"13","doi-asserted-by":"publisher","DOI":"10.1016\/j.jeurceramsoc.2009.06.007"},{"key":"14","doi-asserted-by":"publisher","DOI":"10.1016\/j.ceramint.2005.03.004"},{"key":"15","doi-asserted-by":"publisher","DOI":"10.1111\/j.1551-2916.2011.04467.x"},{"key":"16","doi-asserted-by":"publisher","DOI":"10.1007\/s10854-009-9916-1"},{"key":"17","doi-asserted-by":"publisher","DOI":"10.1016\/j.jallcom.2012.02.172"},{"key":"18","doi-asserted-by":"publisher","DOI":"10.1007\/s40145-013-0071-z"}],"container-title":["The Scientific World Journal"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/downloads.hindawi.com\/journals\/tswj\/2014\/754890.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/tswj\/2014\/754890.xml","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/tswj\/2014\/754890.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2016,7,29]],"date-time":"2016-07-29T04:14:20Z","timestamp":1469765660000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.hindawi.com\/journals\/tswj\/2014\/754890\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2014]]},"references-count":18,"alternative-id":["754890","754890"],"URL":"https:\/\/doi.org\/10.1155\/2014\/754890","relation":{},"ISSN":["2356-6140","1537-744X"],"issn-type":[{"value":"2356-6140","type":"print"},{"value":"1537-744X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2014]]}}}