Zobrazeno 1 - 10
of 116
pro vyhledávání: '"An Z"'
Autor:
Z. Serbetci
Publikováno v:
Materials Science-Poland, Vol 38, Iss 1, Pp 23-27 (2020)
Optical properties of cadmium oxide and uranium-doped CdO thin films synthesized by the sol-gel technique were investigated. The structural properties of the films were investigated using X-ray diffraction patterns of U-doped CdO. It was found that C
Publikováno v:
Materials Science-Poland, Vol 37, Iss 3, Pp 496-502 (2019)
In this work, we have presented a theoretical study of Au/Ni/GaN Schottky diode based on current-voltage (I-V) measurement for temperature range of 120 K to 400 K. The electrical parameters of Au/Ni/GaN, such as barrier height (Φb), ideality factor
Autor:
Fatma Z. Tepehan, Bengü Özuǧur Uysal
Publikováno v:
Materials Science-Poland, Vol 37, Iss 1, Pp 16-24 (2019)
Nanocomposite silica thin films made using the sol-gel method were studied. The nano-silica films were prepared using a mixture of tetraethyl orthosilicate (TEOS), deionized water, ethanol, and ammonia solution. To control the growth of the particles
Publikováno v:
Materials Science-Poland, Vol 36, Iss 1, Pp 80-85 (2018)
The authors have deposited the diamond-like carbon (DLC) films by radio frequency inductively coupled plasma enhanced chemical vapor deposition (RF ICP PECVD) method. The investigated DLC films with different sp3 fraction content were deposited on po
Publikováno v:
Archives of Foundry Engineering, Vol 17, Iss 2, Pp 31-34 (2017)
The aim of the study was to determine the applicability of a new product added to water glass-containing foundry sands hardened with ethylene glycol diacetate. The new additive designated by the symbol “B” is a composition of aqueous solutions of
Publikováno v:
Archives of Foundry Engineering, Vol 17, Iss 1, Pp 99-102 (2017)
The work presents the results of examinations concerning the influence of various amounts of home scrap additions on the porosity of castings made of MgAl9Zn1 alloy. The fraction of home scrap in the metal charge ranged from 0 to 100%. Castings were
Autor:
Dorota Wilk-Kołodziejczyk, Z. Górny, Z. Jancikova, Jiří David, Krzysztof Regulski, Stanisława Kluska-Nawarecka
Publikováno v:
Archives of Foundry Engineering, Vol 14, Iss 2, Pp 69-72 (2014)
The article describes the problem of selection of heat treatment parameters to obtain the required mechanical properties in heat- treated bronzes. A methodology for the construction of a classification model based on rough set theory is presented. A
Publikováno v:
Archives of Foundry Engineering, Vol 16, Iss 1, Pp 99-106 (2016)
A numerical model of binary alloy crystallization, based on the cellular automaton technique, is presented. The model allows to follow the crystallization front movement and to generate the images of evolution of the dendritic structures during the s
Publikováno v:
Archives of Foundry Engineering, Vol 15, Iss 4, Pp 33-36 (2015)
The problem related to the management of post reclamation dusts generated in the reclamation process of waste moulding sands with organic binders is presented in the hereby paper. Waste materials generated in this process are products hazardous for t
Autor:
Z. Pirowski
Publikováno v:
Archives of Foundry Engineering, Vol 15, Iss 1, Pp 87-92 (2015)
Superalloys show a good combination of mechanical strength and resistance to surface degradation under the influence of chemically active environments at high temperature. They are characterized by very high heat and creep resistance. Their main appl