dc.contributor.author |
Frigură-Iliasa, Mihaela |
|
dc.contributor.author |
Tămaş, Andra Dana |
|
dc.date.accessioned |
2021-12-09T10:21:13Z |
|
dc.date.available |
2021-12-09T10:21:13Z |
|
dc.date.issued |
2004 |
|
dc.identifier.citation |
Frigură-Iliasa, Mihaela. A few aspects about the manufacturing process of five and two additives metal oxides varistors. Timişoara: Editura Politehnica, 2008 |
en_US |
dc.identifier.uri |
http://primo.upt.ro:1701/primo-explore/fulldisplay?docid=40TUT000132170&context=L&vid=40TUT_V1&lang=ro_RO&search_scope=40TUT&adaptor=Local%20Search%20Engine&tab=default_tab&query=any,contains,A%20few%20aspects%20about%20the%20manufacturing%20process%20of%20five%20and%20two%20additives%20metal%20oxides%20varistors&sortby=rank&offset=0 Link Primo |
|
dc.description.abstract |
ZnO based varistors are today used for making state of the art surge arresters for all voltage levels. Essentially they are “n” semi-conductor ceramics made of ZnO (more than 90% molar percents) and many other oxides having different structural roles. This paper presents a new manufacturing technology based on 2 additional oxides Cr₂O₃ and MnO₂, compared with the old one, having five oxides (Cr₂O₃, MnO₂, Co₃O₄, Bi₂O₃, NiO). This varistor material has a smaller electrical capacity, suitable for telecommunication applications. The chemical compositions of this new material as well as all the phases of the manufacturing process are presented too [1]. Table 1 shows the initial chemical composition of the varistor. The last four additives will be lost by evaporation after finishing the manufacturing process [2]. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Timişoara : Editura Politehnica |
en_US |
dc.relation.ispartofseries |
Buletinul ştiinţific al Universităţii „Politehnica” din Timişoara, România. Seria chimie şi ingineria mediului, Tom 53(67), fasc. 1-2 (2008), p. 282-285 |
|
dc.subject |
Inginerie chimică |
en_US |
dc.subject |
Manufacturing process |
en_US |
dc.subject |
Five and two additives |
en_US |
dc.subject |
Metal oxides varistors |
en_US |
dc.title |
A few aspects about the manufacturing process of five and two additives metal oxides varistors [articol] |
en_US |
dc.type |
Article |
en_US |