Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Yung Tang Nien"'
Publikováno v:
Ceramics International. 47:18550-18556
Cerium-doped yttrium aluminum garnet (Y3Al5O12:Ce, YAG:Ce) was prepared using a sol-gel method and then fired for CO2 laser post-treatments. Phase transformations and formation of impurities were not observed in YAG:Ce after CO2 laser sintering. The
Publikováno v:
Materials Chemistry and Physics. 297:127417
Microstructure, phase transformation and photoluminescence of YAG:Ce ceramics by CO2 laser sintering
Publikováno v:
Journal of Alloys and Compounds. 797:110-116
This study applied laser sintering to transform yttria, alumina, and cerium nitrate powders into Y3Al5O12:Ce (YAG:Ce) phosphor layers. Different hatch distances (0.3 mm–0.7 mm) were performed on the precursors to evaluate their reaction area, depth
Publikováno v:
Materials Science and Engineering: C. 94:1037-1043
Chromium doped zinc gallium oxide (ZnGa2O4:Cr3+) microrods were synthesized by simple solid state reaction method. The transformation on crystal structure and optical properties with molar concentration of Cr3+ were analyzed. The cubic spinel nature
Publikováno v:
Materials Letters. 306:130960
Fused silica surface machined using continuous-wave CO2 laser beams with an energy density of 0.5 J/mm2 presented U-shaped grooves (approximately 47 μm-deep and 250 μm-wide) and asymmetrical craters (2–5 μm high). The fully reacted valley in the
Publikováno v:
Materials Chemistry and Physics. 276:125423
Delafossite CuFeO2 ceramic powders with distinct sizes and morphologies of 1–6 μm/irregular shapes, 5–10 μm/faceted surfaces, and
Publikováno v:
Ceramics International. 43:9437-9442
Eu 0.5 Y 9.5 W 2 O 21 strong red emission phosphors were synthesized via a conventional solid-state reaction method with environmentally friendly tungstate flux (M 2 WO 4 , M=Li, Na, K). The growth process of the Eu 0.5 Y 9.5 W 2 O 21 phosphors was s
Autor:
Yung Tang Nien, Yi-Chen Chen
Publikováno v:
Journal of the European Ceramic Society. 37:223-227
Cerium-doped yttrium aluminum garnet (YAG:Ce) phosphor ceramics were fabricated by CO2 laser sintering under various powers. X-ray diffraction results indicated that all samples crystallized as a YAG phase without any impurity phase in the power rang
Autor:
Jyun-Kai You, Yung Tang Nien
Publikováno v:
Journal of Alloys and Compounds. 678:1-4
Y 3 Al 5 O 12 :Ce (YAG:Ce) is widely used in light emitting diodes (LEDs) for the conversion of blue light into yellow light. However, thermal quenching has become a severe problem for high-power LEDs because more heat is generated by high-power LED
Publikováno v:
Materials Chemistry and Physics. 179:182-188
Porous CuCrO2 nanopowders were prepared via glycine nitrate process (GNP) at 175 °C in ambient air. The X-ray diffraction patterns showed a pure delafossite phase of CuCrO2 with numerous broad peaks, indicating a crystallite size of approximately 20