Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Transparent (1-x)TiO2-xFe2O3 (x = O,5,10,15 and 20 mol%) thin films prepared by sol-gel process

Hwang K. S., Jeon Y. S., Jeon K. O., Kim B. H.

Optica Applicata

2005

Vol. 35, nr 2

191-199

Transparent iron-doped titanium oxide thin films were prepared on soda-lime-silica glass substrate from a titanium naphthenate precursor. Films prefired at 500°C for 10 min were finally annealed at 500°C for 30 min in air. Field emission-scanning electron microscope and scanning probe microscope were used for characterizing the surface structure of the film. A sharp absorption edge of the film was observed. The film containing iron showed a shift towards the visible in the absorption threshold.

Chemical durability of ß-wollastonite-reinforced glass-ceramics prepared from waste fluorescent glass and calcium carbonate

Kim B. H., Kang B. A., Yun Y. H., Hwang K. S.

Materials Science Poland

2004

Vol. 22, No. 2

83--91

We prepared glass-ceramics reinforced by ß-wollastonite using waste fluorescent glass to resolve the environmental problem. Fluorescent glass and calcium carbonate were used as starting materials. The chemical durability of specimens heat-treated at 800 °C, 900 °C, and 1000 °C was analyzed by both measuring weight change and observing surface morphology. Specimen composition was determined with energy dispersive X-ray spectroscopy. As the heat treatment temperature was increased from 800 °C to 1000 °C, the chemical durability decreased, especially in the glass-matrix area. A compressive strength of about 250-350 MPa was sufficiently large for practical use.