scholarly journals Microwave Measurements of Dielectric Properties of Zinc Oxide at High Temperature

2007 ◽  
Vol 30 (1) ◽  
pp. 13-18
Keyword(s):  
Zinc Oxide ◽  
High Temperature ◽  
Dielectric Properties ◽  
Microwave Measurements

Tetra-needle zinc oxide/silica composites: High-temperature dielectric properties at X-band

2013 ◽  
Vol 154 ◽  
pp. 64-68 ◽  
Author(s):  
Jie Yuan ◽  
Wei-Li Song ◽  
Xiao-Yong Fang ◽  
Xiao-Ling Shi ◽  
Zhi-Ling Hou ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
High Temperature ◽  
Dielectric Properties ◽  
X Band

scholarly journals Demonstration of Phase Change Thermal Energy Storage in Zinc Oxide Microencapsulated Sodium Nitrate

2021 ◽  
Vol 11 (13) ◽  
pp. 6234
Author(s):  
Ciprian Neagoe ◽  
Ioan Albert Tudor ◽  
Cristina Florentina Ciobota ◽  
Cristian Bogdanescu ◽  
Paul Stanciu ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Thermal Properties ◽  
High Temperature ◽  
Energy Storage ◽  
Phase Change ◽  
Thermal Energy ◽  
Sodium Nitrate ◽  
Thermal Energy Storage ◽  
Metal Corrosion ◽  
Scanning Calorimetry

Microencapsulation of sodium nitrate (NaNO3) as phase change material for high temperature thermal energy storage aims to reduce costs related to metal corrosion in storage tanks. The goal of this work was to test in a prototype thermal energy storage tank (16.7 L internal volume) the thermal properties of NaNO3 microencapsulated in zinc oxide shells, and estimate the potential of NaNO3–ZnO microcapsules for thermal storage applications. A fast and scalable microencapsulation procedure was developed, a flow calorimetry method was adapted, and a template document created to perform tank thermal transfer simulation by the finite element method (FEM) was set in Microsoft Excel. Differential scanning calorimetry (DSC) and transient plane source (TPS) methods were used to measure, in small samples, the temperature dependency of melting/solidification heat, specific heat, and thermal conductivity of the NaNO3–ZnO microcapsules. Scanning electron microscopy (SEM) and chemical analysis demonstrated the stability of microcapsules over multiple tank charge–discharge cycles. The energy stored as latent heat is available for a temperature interval from 303 to 285 °C, corresponding to onset–offset for NaNO3 solidification. Charge–self-discharge experiments on the pilot tank showed that the amount of thermal energy stored in this interval largely corresponds to the NaNO3 content of the microcapsules; the high temperature energy density of microcapsules is estimated in the range from 145 to 179 MJ/m3. Comparison between real tank experiments and FEM simulations demonstrated that DSC and TPS laboratory measurements on microcapsule thermal properties may reliably be used to design applications for thermal energy storage.

Dielectric properties of zinc oxide/low density polyethylene nanocomposites

2005 ◽  
Vol 59 (4) ◽  
pp. 473-476 ◽  
Author(s):  
J.I. Hong ◽  
P. Winberg ◽  
L.S. Schadler ◽  
R.W. Siegel
Keyword(s):  
Zinc Oxide ◽  
Dielectric Properties ◽  
Low Density Polyethylene ◽  
Low Density

Hydrolysis of Zinc Ion and Solubility of Zinc Oxide in High-Temperature Aqueous Systems

1997 ◽  
Vol 127 (3) ◽  
pp. 292-299 ◽  
Author(s):  
Yukiko Hanzawa ◽  
Daisuke Hiroishi ◽  
Chihiro Matsuura ◽  
Kenkichi Ishigure ◽  
Masashi Nagao ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
High Temperature ◽  
Zinc Ion ◽  
Aqueous Systems ◽  
Hydrolysis Of

Ferroelectric, piezoelectric, and dielectric properties of BiScO3-PbTiO3-Pb(Cd1/3Nb2/3)O3 ternary high temperature piezoelectric ceramics

2013 ◽  
Vol 114 (2) ◽  
pp. 027014 ◽  
Author(s):  
Tian-Long Zhao ◽  
Jianguo Chen ◽  
Chun-Ming Wang ◽  
Yang Yu ◽  
Shuxiang Dong
Keyword(s):  
High Temperature ◽  
Dielectric Properties ◽  
Piezoelectric Ceramics
Sign in / Sign up

Export Citation Format

Share Document