Improved Microwave Dielectric Properties of Sm-Substituted SBTi Ceramics for Resonator Applications
Journal Title: UNKNOWN - Year 2015, Vol 4, Issue 4
Abstract
Effect of composition and sintering procedure upon the structural, microstructures and microwave dielectric characteristics of Sm-substituted SBTi ceramics were investigated. SrBi4-xSmxTi4O15 (x=0.25, 0.5, 0.75 and 1) ceramic samples is prepared by solid state method and sintered by microwave sintering. As the substitution content increases, the dielectric constant values are increased up to x = 0.75. Room temperature microwave dielectric properties are measured for the same composition samples in the frequency range 8-12.4GHz. The excellent microwave dielectic constant and low loss values were achieved in the ceramics with x=0.5 and 0.75 are 102 & 110 and 0.65 & 0.35 respectively
Digitally Mediated Learning and Pre-Service Teachers in Less Resourced Regions
Digital technologies of today have challenged the traditional systems of education and have created potential new ways of delivery of knowledge and skills that require a critical look at learning and how it might be deli...
The Incidence of Renal Cystic Masses in Kassala State: Sudan
The Incidence of Renal Cystic Masses in Kassala State: Sudan
Hyperbilirubinema is Treated Using L.E.D Phototherapy for Neonatals
Neonatal hyperbilirubinemia or Neonatal jaundice is a yellowing of skin and other tissues of a newborn infant. Neonatal phototherapy is widely used and accepted form of treatment form of treatment for neonatal hyperbilir...
Virulence and Control of Sporisorium ehrenbergii Vánky Races Attack Sorghum in Sohag Regions of Upper Egypt
Sporisorium ehrenbergii Vánky is the causal agent of long smut (LS) on sorghum in several African and Asian countries. For effective breeding programs to evolve LS resistant varieties to control this important disease, i...
Study of Formalin Toxicity in I MBBS Students
Formalin is used as a preservative for human cadaver. The present study was conducted in 250 I MBBS students to find out and quantify the toxic effects of formalin. In our study 87.2% students have reported watering of e...