Document Details

Document Type : Article In Journal 
Document Title :
CrystallizationkineticsofLi2O–PbO–V2O5 glasses
ماعاملات التبللر لزجاج من أكسيد الليثيوم والرصاص والفانديوم
 
Subject : Thermal analysis (Oxides) 
Document Language : English 
Abstract : Lead vanadateglassesofthesystem5Li2O(45x) PbO(50+x) V2O5, with x ¼ 0, 5,10,and15mol% havebeenpreparedandstudiedbydifferentialscanningcalorimetry(DSC).Thecrystallizationkinetics of theglasseswereinvestigatedundernon-isothermalconditionsapplyingtheformaltheoryof transformations forheterogeneousnucleationtotheexperimentaldataobtainedbyDSCusing continuous-heatingtechniques.Inaddition,fromdependenceoftheglass-transitiontemperature(Tg) on theheatingrate,theactivationenergyfortheglasstransitionwasderived.Similarlytheactivation energy ofthecrystallizationprocesswasdeterminedandthecrystallizationmechanismwas characterized. Theresultsrevealtheincreaseoftheactivationenergyforglasstransitionwhichwas attributedtotheincreaseintherigidity,thecross-linkdensityandthepackingdensityoftheseglasses. The phasesintowhichtheglasscrystallizeshavebeenidentifiedbyX-raydiffraction.Diffractogramsof the transformedmaterialindicatethepresenceofmicrocrystallitesofLi0.30V2O5, Li0.67O5V2, LiV6O15, Li4O4Pb,andO7Pb2V2 in aremainingamorphousmatrix. 
ISSN : 04-051 
Journal Name : physica B 
Volume : 404 
Issue Number : 404 
Publishing Year : 1430 AH
2009 AD 
Article Type : Article 
Added Date : Wednesday, December 29, 2010 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
كمال عبدالنبي عليAli, Kmal AbdualnabiResearcherDoctorate 

Files

File NameTypeDescription
 28374.pdf pdf 

Back To Researches Page