Wyniki wyszukiwania - Biblioteka Nauki

Ten serwis zostanie wyłączony 2025-02-11.

Nowa wersja platformy, zawierająca wyłącznie zasoby pełnotekstowe, jest już dostępna.
Przejdź na https://bibliotekanauki.pl

Ograniczanie wyników

Znaleziono wyników: 3

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: ceramics and glasses

Sortuj według:

Ogranicz wyniki do:

Modification of the structure of the layers of superficial soda - calcium - silicon glasses nano molecules inorganic compounds

100%

Drajewicz M. , Sieniawski J.

2012

tom Vol. 53, nr 2

76--80

Purpose: Finding a new surface treatment of glass. Design/methodology/approach: Testing results of the glass operational properties, such as bending strength, scratching resistance, micro-hardness, chemical resistance and optical properties have been presented. Nano-molecules were spread onto the heated glass surface, or onto cold glass surface and then heated up to temperatures close to the glass transformation, when nano-molecules penetrate into the glass surface. Findings: Refining method of soda - calcium - silicon glassy surfaces with inorganic compounds nanomolecules assures profitable operational properties of the glass, such as increased bending strength, scratching resistance, micro-hardness and chemical resistance without deterioration of the optical properties. Research limitations/implications: Structural definition of inorganic compounds nano-powders exposed to thermal processing, including grain-size analysis has been discussed. Practical implications: Optimal technical and technological parameters of the refining process have been selected. Originality/value: The presented method undoubtedly develops new possibilities not only in case of container glass, float glass and glass fibres but also in the field of glass processing.

Characterization of powders used for LPPS Thin Film plasma spraying of thermal barrier coatings

100%

Góral M. , Drajewicz M. , Pytel M. , Kotowski S.

tom Vol. 47, nr 2

157--165

Purpose: The authors described in this article the basic properties of materials used for spray process of thermal barrier coatings under low pressure The characteristic of selected powders applied for bond-coats and outer ceramic layer was introduced. The authors presented the analysis of powders based on zirconium oxide stabilized by yttrium oxide, magnesium and calcium. Design/methodology/approach: The described powders was analyzed by scanning electron microscopy and particle distribution by IPS U analyzer. Findings: The ceramic powders were characterized by irregular particle shape caused by grinding process. The only exception was Metco 204 powder, with spheroid-shaped particles. Research limitations/implications: The ceramic powders were made of zirconium oxide, which was stabilized by different types of oxides: yttrium (Metco 204), calcium (Metco 201) and magnesium (Metco 210). It is necessary to assess influence of the oxide, stabilizing the yttrium oxide, on stability of obtained ceramic layer of TBC coating. Practical implications: Powders analysed in the article will be submitted to plasma spraying process with different methods. Originality/value: The ceramic powder used for LPPS-Thin Film process were first time described.

The Use of Black Coal Fly Ash at the Production of Ceramic Materials, 1. Part

84%

Michalikova F. , Brezani I. , Sisol M. , Mihokova L. , Stehlikova B.

Inżynieria Mineralna

2014

tom R. 15, nr 1

227--234

In the contribution, methods of utilizing power plant fly ash for the bricks production are presented. The utilization of fly ash at maximum of 30 % (wt) meets the requirements to the bending strength (after drying and firing) of the probe bricks. The laboratory tests prove the justification of the application of fly ash in the brick manufacturEng.

W artykule przedstawiono metodę produkcji cegieł z wykorzystaniem popiołu lotnego z elektrowni. Udział popiołu lotnego w ilości 30% (wagowo) spełnia wymagania dotyczące wytrzymałości na zginanie (po wysuszeniu i wypaleniu) cegieł. Badania laboratoryjne wykazały skuteczność zastosowania popiołów lotnych w produkcji cegły.