• Title/Summary/Keyword: Sun glass

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Feasibility of BaO-ZnO-$B_2O_3$ based Glass as a Host to Employ Various Ceramic Fillers to be applied to Barrier Ribs in Plasma Display Panels

  • Kim, Sang-Gon;Shin, Hyun-Ho;Park, Jong-Sung;Hong, Kug-Sun;Kim, Hyung-Sun
    • Journal of Information Display
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    • v.5 no.3
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    • pp.25-29
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    • 2004
  • Effects of additing various types of ceramic fillers to the BZB-based glass on the thermo-chemical stability, optical reflectance, and mechanical properties were investigated. The glass system demonstrated the feasibility to host various types of ceramic fillers to form micro-composites at the processing temperature suitable for PDP systems. The optical reflectance and mechanical strength of the filler-glass composites were improved as compared to the glass itself. These results demonstrate the feasibility of applying the Pb-free BZB-based glass system as a matrix for employing various types of crystalline ceramic fillers to be used as barrier rib materials in plasma display panels.

A Study on the Collector Characteristics of Evacuated Double Glass Tube by Artificial Sun (인공태양에 의한 이중 진공 유리관의 집열특성에 관한 연구)

  • Nam, Yong-Han;Shin, Jae-Ho;Mo, Joung-Gun;Chung, Han-Shik;Jeong, Hyo-Min;Suh, Jeong-Se
    • Proceedings of the KSME Conference
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    • 2003.04a
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    • pp.1542-1547
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    • 2003
  • This paper represents the solar collector performance with type of an evacuate double glass, and a copper tube was installed in center of collector to get a solar thermal energy. The one module of solar collector and artificial sun were used in this experiment The distance between artificial sun and solar collector was fixed at 0.5m, and this experimental condition was focused on winter season. The experiments were carried out. three times for getting a accurate data and the heat amount of one module evacuate d solar collector was estimated at out. 48 kcal/hr.

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Thermochemical Stability and Mechanical Properties of Ceramic-Filler Added BaO-ZnO-$B_2O_3$ Based Glass for Application to Barrier Rib in Plasma Display Panels

  • Kim, Sang-Gon;Shin, Hyun-Ho;Park, Jong-Sung;Hong, Kug-Sun;Kim, Hyung-Sun
    • 한국정보디스플레이학회:학술대회논문집
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    • 2004.08a
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    • pp.220-222
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    • 2004
  • Feasibility of BaO-ZnO-$B_2O_3$ (BZB) based glass system in the light of dielectric and thermal expansion properties are reported in the literature. Effects of addition of various types of ceramic fillers to the BZB-based glass on the thermochemical stability and mechanical properties were investigated in the present work. The studied filler-glass system demonstrated a capability to host various types of ceramic fillers to form thermochemically stable microcomposites at the processing temperature suitable for PDP systems. At the same time, mechanical strength of the filler-glass composites was much improved as compared to the glass itself These observations brighten the feasibility of the Pb-free BZB-based glass system as a host to employ various types of crystalline ceramic fillers so that it can be applied to barrier rib material in plasma display panels.

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Assessment on Mechanical Performance of Porcelain and Glass Insulators by Pendulum Weight (진자 추에 의한 자기 및 유리애자의 기계적 성능 평가)

  • Shong, Kil-Mok;Kim, Jong-Min;Kim, Young-Seok;Bang, Sun-Bae;Kim, Sun-Gu;Jeon, Yong-Joo
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2008.06a
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    • pp.475-476
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    • 2008
  • This paper is an experimental test for the close examination of breakdown causes of glass insulators using at the electric rail-road. The glass insulator is estimated the mechanical performance according to hitting test(ST-100, Sharp-Eng, KOR) that is based on KSC 3810. Insulators is damaged by pendulum weight at the steps of hitting angles. Glass and porcelain insulators are broken at the hitting angle of $72^{\circ}$. From the these results, glass insulator absorbed the impact from the pendulum weight but on the porcelain insulator, it is not transmitted vibration by impact. Hereafter, these results are expected that is used the data for the assessment on breakdown cause of a glass insulator.

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Effect of Particle Size Distribution of Glass Frit on the Transparency of Transparent Dielectric Layer for Plasma Display Panel

  • Park, Ji-Su;Han, Sun-Mi;Hwang, Jong-Hee;Lim, Tae-Young;Kim, Kwang-Jin;Masaki, Takaki
    • 한국정보디스플레이학회:학술대회논문집
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    • 2004.08a
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    • pp.555-557
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    • 2004
  • We report the effect of the particle size (D50) and PSD (Particle Size Distribution) of glass frit on the transparency of transparent dielectric layer of PDP. The milling efficiency of wet milling with water was the best among the dry milling, wet milling with IPA and wet milling with water. The transparency increased with the reduction of particle size of glass frit as the milling time increased. Also the transparency changed by the PSD of glass frit. Glass frits of broad PSD showed high transparency compared with the glass frits of sharp PSD.

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The Effect of Wet Milling on Transparency of Transparent Dielectric in PDP

  • Han, Sun-Mi;Park, Ji-Su;Hwang, Jong-Hee;Lim, Tae-Young;Kim, Kwang-Jin;Masaki, Takaki
    • 한국정보디스플레이학회:학술대회논문집
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    • 2004.08a
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    • pp.558-560
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    • 2004
  • We report the effect of wet ball milling conditions on the transparency of glass frit. Generally, the particle size of glass frit decreased as the milling time increased. And the transparency of glass frit changed with the particle size variation. The transparency of glass frit A increased as the milling time increased. But, the transparency of glass frit B, containing high $B_2O_3$ decreased as the particle size decreased. It seems to be the result of chemical reaction with water and glass frit.

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Thermal Properties of Phosphate Glass with Additives for Barrier-Ribs in Plasma Display Panel

  • Lee, Chung-Yong;Kim, Dong-Sun;You, Young-Jin;Lee, Sang-Ho;Hwang, Seong-Jin;Kim, Hyung-Sun
    • 한국정보디스플레이학회:학술대회논문집
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    • 2008.10a
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    • pp.823-826
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    • 2008
  • Phosphate glass added the various alkali additives is one of the substitutive materials for the barrier-ribs in plasma display panel. The results of differential thermal analysis and coefficient of thermal expansion show that the alkali oxides affect the thermal properties of phosphate glass.

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The Reliability Test of Sealing Glass Frit in AC PDP

  • Jeon, Young-Hwan;Hwang, Jong-Hee;Lim, Tae-Young;Kim, Hyung-Sun
    • 한국정보디스플레이학회:학술대회논문집
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    • 2005.07b
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    • pp.1538-1541
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    • 2005
  • For reliability evaluation of AC-PDP, one of the most important factor is sealing property. In this paper, the reliability evaluation test method of the commercialized sealing glass frit in AC-PDP was studied. 6 inch AC-PDP panels were tested for evaluation of sealing glass frit by vibration shock test, thermal shock test, non -destructive X-ray inspection, residual stress inspection and residual gas detection. These test methods are proposed as a standard for testing the reliability of sealing glass frit. The main failure mode of sealing glass frit in AC-PDP seems to be the crack propagation from thermal cycling rather than mechanical factor.

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