Dissertation > Excellent graduate degree dissertation topics show

Mechanism and Preparation of Cordierite Powder Synthesized by Microemulsion-Sol Gel Technique

Author: LuHaoRan
Tutor: WangShaoHong;HouChaoXia
School: Shenyang University
Course: Materials Science
Keywords: Cordierite Microemulsion - sol - gel method. High-frequency multilayer chip inductors Dielectric properties Low-temperature sintering
CLC: TB383.3
Type: Master's thesis
Year: 2011
Downloads: 58
Quote: 0
Read: Download Dissertation


In this study, using a microemulsion - a sol-gel process , nitrate, magnesium / aluminum nitrate / TEOS sol solubilized the Triton X.100 / n-hexanol / cyclohexane system , synthetic cordierite ceramic nanopowder . Form a broadly stable W / O type pseudoternary phase diagram were measured and plotted ; ; study by the micro- emulsion W / O type microemulsion phase behavior and determine the optimum parameters of the gelation quality time - the particle size distribution of the sol-gel prepared cordierite ceramic nanopowder sintering properties , crystallization properties , microstructure, dielectric properties ; of cordierite powder microemulsion - prepared by the sol-gel casting experiment . Elected with TritonX-100 as a surfactant , n-hexyl alcohol as a cosurfactant , cyclohexane as an oil phase , the synthesis temperature was 45 ℃ can be obtained when a broad, stable W / O type phase region ; this concentration of the precursor ( Mg2) pH values ??and [H2O ] / [ TEOS ] ratio was 1.5mol / L, 5 and 4.5 , gelation time most reasonable ( 0.5h) and the resulting gel component uniform ; microemulsion - sol-gel the prepared cordierite powder particle diameter of about 75nnm , and the distribution of concentration; cordierite materials at 900 ℃ under low temperature , has excellent dielectric properties (ε LT ; Tan.Delta @ LT ; 0.001; 1GHz) densification sintering ; blank tape can casting dried at 900 ° C for densification sintering , composed by a large number of a- cordierite phase microstructure gives the sintered body of high mechanical strength and excellent dielectric properties , to meet the high - frequency multilayer chip inductor with a dielectric material . requirements.

Related Dissertations

  1. Lithium anode material calcined alumina crucible Development,TQ174.6
  2. Modification of Thermosetting Resins by High Performance Liquid Crystalline Epoxy Resin,TQ323.5
  3. Study of Performance of Cordierite Combined Mullite Products,TQ175.71
  4. Microwave Dielectric Resonator Ceramics of High-Q Value for the 3G Mobile Communication Base Stations,TQ174.756
  5. Study on Low Temperature Sintered PSN-PZT Piezoelectric Ceramics,TM282
  6. Processing and Property Study of Mg2TiO4 -based Microwave Dielectric Ceramics,TN04
  7. LTCC glass additives and casting technology research,TN405
  8. Water-based casting Cordierite ceramic green sheet and its properties,TQ174.62
  9. Li ferrite temperature Preparation and simulation applications,TM277
  10. Boron nitride fiber reinforced ceramic matrix composites through the waves and Properties,TB332
  11. High thermal conductivity epoxy composites and Research,TB332
  12. Properties of 1-3 Polymer/Cement Based Piezoelectric Composites,TB332
  13. Preparation and Characterization of Building Waterborne Thermal Insulation Coating Using Composite Technology,TQ630.7
  14. Study on the Preparation and Catalytic Properties of Titanium Silicalite-1,TQ424.25
  15. Effects of Sintering Additives on Sintering Characteristics and Thermoelectric Properties of LaCoO3 Ceramics,TQ174.651
  16. Modeling the Effects of Grain Orientation of Cordierite Based Glass-Ceramics on Stress Distribution by Fem,TQ174.1
  17. Research on Electrical and Magnetic Properties of Composite Garnet Ferrite Sintered at Low-temperature,TQ138.11
  18. Preparation of Honeycomb Ceramic Perovskite-Type Catalyst and Its Characteristic of Catalytic Combustion of VOCs,O643.36
  19. Research on Lead-free (Ba, Sr)TiO3 Based Ceramics,TB34
  20. The Study on Low-temperature Sintering of Alumina Ceramic and Its Metallizing,TQ174.1
  21. Molten salt prepared niobium , zinc - based microwave dielectric ceramics structure and properties of,TQ174.1

CLC: > Industrial Technology > General industrial technology > Materials science and engineering > Special structural materials
© 2012 www.DissertationTopic.Net  Mobile