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SPS Preparation Of Long-lasting Phosphorescence Glass And Its Luminescent Property Study

Posted on:2016-05-28Degree:MasterType:Thesis
Country:ChinaCandidate:M H WangFull Text:PDF
GTID:2191330452970990Subject:Materials engineering
Abstract/Summary:PDF Full Text Request
Long-lasting phosphorescence material is a material that would continue to glow after theexcitation source is shut down. It’s an energy-saving material and can be used in many fields.Glass is an excellent matrix material which could be combined with luminescent powder for itsgood transparency. The long-lasting phosphorescence glass is usually prepared by traditionalmelting method. It is difficult to get long-lasting phosphorescence with high performance in thisway.In the paper, a new method is proposed to prepare long-lasting phosphorescence glass. Thelong-lasting phosphorescence material and SBA-15powder were selected as raw materials, andthen sintered by Spark Plasma Sintering (SPS) to fabricate long-lasting phosphorescence glass. Atthe same time, the preparation process and luminescence properties of glass were researched indetail. The main content of this thesis is below:(1) The SBA-15powder was synthesized from TEOS and pluronic P123in acidiccondition. The testing results showed that the pore size and specific surface area wereabout6.608nm and620m2/g, respectively.(2) The SBA-15powder was sintered by SPS and the sintering parameters wereinvestigated in detail. The results showed that most suitable sintering parameters werebelow: temperature of1020oc, pressure of50MPa and heating rate of100oc/min.UV–Vis spectra shows the transmittance of a glass is more than80%.(3) A series of mixtures of long-lasting phosphorescence material and SBA-15powderwere sintered to prepare different glass samples by SPS from980to1140oC under50MPa. The properties of as-sintered long-lasting phosphorescence glass were studied.The results showed decomposition of long-lasting phosphorescence material wasavoided during SPS sintering process. The as-sintered long-lasting phosphorescenceglass samples exhibited excellent long-lasting phosphorescence properties. In brief, a novel method to prepare long-lasting phosphorescence glass was put forward inthis work and we got long-lasting phosphorescence glass with high performance successfully.
Keywords/Search Tags:long-lasting phosphorescence glass, SBA-15powder, SPS
PDF Full Text Request
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