dc.contributor.author | Pranckevičienė, Jolanta | |
dc.contributor.author | Balkevičius, Valdas | |
dc.contributor.author | Špokauskas, Alfonsas Algimantas | |
dc.date.accessioned | 2023-09-18T17:53:20Z | |
dc.date.available | 2023-09-18T17:53:20Z | |
dc.date.issued | 2010 | |
dc.identifier.issn | 1392-1320 | |
dc.identifier.other | (BIS)VGT02-000021550 | |
dc.identifier.uri | https://etalpykla.vilniustech.lt/handle/123456789/127039 | |
dc.description.abstract | The work deals with the ceramics obtained by burning of formative mixtures out of low-melting illite clay with additives of mineral wool centrifugation waste (MWCF waste) and fine-dispersed nepheline syenite. For investigations, we used milled nepheline syenite with specific surface of 8200 cm(2)/g. After burning of formative mixture with 25 % additive of milled nepheline syenite at temperature of 1060 degrees C, the sintered ceramics with water absorption of 2.52 % and density of 2097 kg/m(3) was received. The temperature of local liquid phase origination was observed at 800 degrees C. The ions K+ and Na+ contained in nepheline syenite reacted with the compounds contained in clay and, at crystallization of reaction products, leucite and aegirine formed. | eng |
dc.description.abstract | Darbe ištirta sukepusioji keramika, gauta degant formavimo mišinius iš lengvalydžio ilitinio molio su mineralinės vatos centrifugavimo atliekų ir smulkiadispersio nefelino sienito priedais. Tyrimams naudotas nefelino sienito malinys, kurio savitasis paviršius 8200 cm2/g. Nustatyta, kad 1060 ŗC temperatūroje išdegus formavimo mišinį su 25 % nefelino sienito malinio priedu, gaunama sukepusioji keramika, kurios vandens įmirkis 2,52%, o tankis – 2097 kg/m3. Vietomis skystoji fazė pradeda rastis 800 C temperatūroje. Ištyrus formavimo mišinį su 25 % nefelino sienito malinio priedu nustatyta, kad endoterminio efekto, apibūdinančio molyje esančių karbonatų skilimą, maksimumo temperatūra sumažėjo nuo 760 C iki 730 C. Nefelino sienito sudėtyje esantys K+ ir Na+ jonai reaguoja su molio sudėtyje esančiais junginiais. Kristalizuojantis reakcijos produktams, susidaro leucitas (KAlSi2O6) ir aegirinas NaFe(Si2O6). | lit |
dc.format.extent | p. 231-235 | |
dc.format.medium | tekstas / txt | |
dc.language.iso | eng | |
dc.relation.isreferencedby | VINITI | |
dc.relation.isreferencedby | INSPEC | |
dc.relation.isreferencedby | Science Citation Index Expanded (Web of Science) | |
dc.source.uri | https://matsc.ktu.lt/index.php/MatSc/article/view/26074 | |
dc.title | Investigations on properties of sintered ceramics out of low-melting illite clay and additive of fine-dispersed nepheline syenite | |
dc.title.alternative | Sukepusiosios keramikos iš lengvalydžio ilitinio molio ir smulkiadispersio nefelino sienito priedu tyrimai | |
dc.type | Straipsnis Web of Science DB / Article in Web of Science DB | |
dcterms.references | 22 | |
dc.type.pubtype | S1 - Straipsnis Web of Science DB / Web of Science DB article | |
dc.contributor.institution | Vilniaus Gedimino technikos universitetas | |
dc.contributor.faculty | Termoizoliacijos mokslo institutasui-button / Scientific Institute of Thermal Insulationui-button | |
dc.subject.researchfield | T 008 - Medžiagų inžinerija / Material engineering | |
dc.subject.en | Mineral wool centrifugation waste | |
dc.subject.en | Low-melting illite clay | |
dc.subject.en | Nepheline syenite | |
dc.subject.en | Leucite | |
dc.subject.en | Aegirine | |
dcterms.sourcetitle | Materials science = Medžiagotyra | |
dc.description.issue | no. 3 | |
dc.description.volume | Vol. 16 | |
dc.publisher.name | Technologija | |
dc.publisher.city | Kaunas | |
dc.identifier.doi | 000282650900009 | |
dc.identifier.elaba | 3917156 | |