Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Stoyko Gyurov"'
Publikováno v:
Medžiagotyra, Vol 30, Iss 2, Pp 177-182 (2024)
A new amorphous alloy (Al74Cu16Mg10)99,7Zr0.3 was prepared the applying a melt-spinning technique. Temperature dependence of viscosity of the alloy was determined using data from a PerkinElmer TMS2 thermo-mechanical analyzer processed according to a
Externí odkaz:
https://doaj.org/article/b0d3e0c6d94d4a4ea65ba5021556b89a
Publikováno v:
Metals, Vol 9, Iss 11, p 1157 (2019)
The thermal properties of a Pd40Ni40Si20 glassy alloy with the largest supercooled liquid region among the glassy alloys containing Si as a metalloid element are studied using static and dynamic measurement methods. The relatively wide supercooled li
Externí odkaz:
https://doaj.org/article/480b083daf6a4b1f9dfdf877530eb44b
Autor:
Ivanka Spassova, Galia Gentscheva, M. Markova-Velichkova, Ivan Penkov, Diana Rabadjieva, Ch. Tzvetkova, Stoyko Gyurov, Yoanna Kostova, Daniela Kovacheva, Nikolay Marinkov
Publikováno v:
Journal of Sol-Gel Science and Technology. 87:331-339
The formation of silicagel from sodium silicate solution obtained by alkaline autoclave treatment of copper slag was investigated. The influence of the parameters of the gelation process (type of acid used, the pH of the medium, and drying conditions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6bceae71083d4f8e7f88ef57318f3165
https://doi.org/10.1007/s10971-018-4741-8
https://doi.org/10.1007/s10971-018-4741-8
Publikováno v:
Materials Science and Engineering: A. 684:222-228
The thermal stability and viscous flow behaviour of fourrapidly solidified NiNbZrTiAl amorphous metallic alloys under constant heating rate conditions are studied using thermomechanical analyzer (TMA). The viscous flow results are discussed and inter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68dd5efdbb22c4620a773fa9eb144e6e
https://doi.org/10.1016/j.msea.2016.11.093
https://doi.org/10.1016/j.msea.2016.11.093
Autor:
Diana Rabadjieva, Galia Gentscheva, Stoyko Gyurov, Yoanna Kostova, Ivan Penkov, Daniela Kovacheva, Christina Tzvetkova, Nikolay Marinkov
Publikováno v:
International Journal of Mineral Processing. 158:1-7
A technological scheme for copper slag processing is proposed. It comprises 5 stages, namely: (i) air oxidation of the copper slag at a temperature above 800 °C for 2 h; (ii) hydrothermal treatment of the oxidized slag with sodium hydroxide solution
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f426fa16f31cb2c939d39d4b306ada17
https://doi.org/10.1016/j.minpro.2016.11.008
https://doi.org/10.1016/j.minpro.2016.11.008
Publikováno v:
Journal of Materials Engineering and Performance. 25:3838-3844
The part of binary manganese-zinc phase diagram (alloys containing up to 2% manganese) is analyzed and the expected compositions with increased plasticity are determined in this paper. A special attention is paid to the relation between the compositi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8af5189465eb76e2ae01152d296b23c7
https://doi.org/10.1007/s11665-016-2184-3
https://doi.org/10.1007/s11665-016-2184-3
Publikováno v:
Engineering Sciences.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d81cd1168ff459f8b3373f4ec1f8f06
https://doi.org/10.7546/engsci.lv.18.03.05
https://doi.org/10.7546/engsci.lv.18.03.05
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 116:945-953
The kinetics of air copper slag oxidation under nonisothermal conditions is studied using simultaneous TG–DTA at a varying heating rate of slag and flow rate of the oxidizing gas flux. The values of the kinetic parameters, activation energy and pre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2636681b7a7091479a926319c5f0a5d1
https://doi.org/10.1007/s10973-013-3569-2
https://doi.org/10.1007/s10973-013-3569-2
Publikováno v:
Metals
Volume 9
Issue 11
Metals, Vol 9, Iss 11, p 1157 (2019)
Volume 9
Issue 11
Metals, Vol 9, Iss 11, p 1157 (2019)
The thermal properties of a Pd40Ni40Si20 glassy alloy with the largest supercooled liquid region among the glassy alloys containing Si as a metalloid element are studied using static and dynamic measurement methods. The relatively wide supercooled li
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8305b793c1759bd0dcc0714e830bd075
https://doi.org/10.3390/met9111157
https://doi.org/10.3390/met9111157
Publikováno v:
Waste Management & Research: The Journal for a Sustainable Circular Economy. 29:157-164
The purpose of this study was to investigate the possibility of separating pyrometallurgical copper (fayalite) slag by oxidation in a synthetic air atmosphere into ferrous and silicate phases suitable for resources to be recovered from them. Isotherm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::53781cfae2062a24ad05ef07de45e8b1
https://doi.org/10.1177/0734242x10379495
https://doi.org/10.1177/0734242x10379495