Volume 53, Iss. 6, 2018

Journal of Chemical Technology and Metallurgy

53, Iss. 6, 2018
ISSN 1314-7471 (print)
ISSN 1314-7978 (on line)

EDITOR-IN- CHIEF
Prof. Dr. Bogdana Koumanova
Tel: (+ 359 2) 81 63 302
University of Chemical Technology and Metallurgy
8 Kl. Ohridski, 1756 Sofia, Bulgaria
E-mail: journal@uctm.edu

 

SELECTED ARTICLES

SEVENTH BALKAN CONFERENCE

ON GLASS SCIENCE & TECHNOLOGY

19th CONFERENCE

ON GLASS AND CERAMICS

 

1 - 4 October, 2017

Nessebar, Bulgaria

 

Invited Editors

Prof. Dr. Stoyan Djambazov

Prof. D.Sc. Vesselin Dimitrov

 

 

 

Dear readers


Prof. D.Sc. Yanko Dimitriev A life devoted to the science and the knowledge

Anna Staneva, Vesselin Dimitrov, Stojan Djambazov

 

Group optical basicity and single bond strength of lead borate glasses

Vesselin Dimitrov, Tina Tasheva, Takayuki Komatsu


Group optical basicity and single bond strength of oxide glasses

Vesselin Dimitrov, Takayuki Komatsu, Tina Tasheva


NaPO3-AlF3 Glasses: fluorine evaporation during melting and the resulting variations in structure and properties

Doris Möncke, Manoel da Cruz Barbosa Neto, Henrik Bradtmüller, Gabriel Buzatto de Souza, Alisson M. Rodrigues, Hager S. Elkholy, Hosam A. Othman, Benjamin J.A. Moulton, Efstratios I. Kamitsos, Ana Candida M. Rodrigues, Doris Ehrt


Electron microscopy investigation of the microstructure and elemental composition of barium titanate precipitated in oxide glasses

Ruzha Harizanova, Liliya Vladislavova, Georgi Avdeev,Christian Bocker, Ivailo Gugov, Christian Rüssel


Synthesis of ZnTeO3 by crystallization of glasses in TeO2-Bi2O3-ZnO-Nb2O5 system

Svetlozar Ganev, Albena Bachvarova-Nedelcheva, Reni Iordanova, Bogdan Ranguelov, Svetlin Parvanov


Determination of the sensing characteristics of SiO2-Bi2O3-TiO2 system towards relative humidity

Ahmed S. Afify, Stanislav S. Slavov, Abd El‐Razek Mahmoud, M. Hassan, Mohamed Ataalla, Anna Staneva, Amr Mohamed


An innovative composite material based on sintered glass foam granules

Lyuben Lakov, Bojidar Jivov, MihaelaAleksandrova, Yonka Ivanova, Krasimira Toncheva


Luminescent properties of rare earth doped ZnO-B2O3-P2O5 glasses

Irena Kostova, Georgi Patronov, Dan Tonchev


Stress analysis of insulating glass units under transient thermal loadings

Ivelin Ivanov, Dimitar Velchev, Nina Penkova, Kalin Krumov, Veselin Iliev


Multifunctional smart coatings on novel ceramics and glass-ceramic substrates in the context of the circular economy

Teodora Stoyanova Lyubenova, Diego Fraga, Juan B. Carda Castelló, Vladimir Kozhukharov, Maria S. Machkova


Influense of brewery waste sludge containing diatomite on the physical properties and thermal conductivity of porous clay bricks

Angel Georgiev, Albena Yoleva, Stoyan Djambazov


Preparation of bonding substances on the ground of chrome concentrate utilization waste sludge

Vladimir Petkov, Radoslav Valov, Ivan Penkov

 

Investigation of the possibility of using waste aluminum slag as a raw material for the production of construction-ceramic articles

Ganka Kolchakova, Milena Ivanova, Louiza Terziyska


Determination of the fractal dimension of porous ceramic materials

Irena Markovska, Stancho Pavlov, Fila Yovkova, Stanka Yaneva


Estimation of ceramics surface roughness by fourier analysis

Irena Markovska, Stancho Pavlov, Fila Yovkova, Todor Michalev, Stanka Yaneva


Production of prototypes of “yellow paving stones” in Bulgaria

Part I: Physical and chemical properties

Lyuben Lakov, Svetlana Encheva, Peniu Tsonev, Bojidar Jivov, Mihaela Aleksandrova, Krasimira Toncheva


Production of prototypes of “yellow paving stones” in Bulgaria

Part II: Tribological and mechanical indicators

Lyuben Lakov, Mara Kandeva, Peniu Tsonev, Veselin Vasilev, Bojidar Jivov, Mihaela Aleksandrova, Krasimira Toncheva, Nikolai Stoimenov


Efficiency of transparent structures in trombe walls

Nikola Kaloyanov, Borislav Stankov, Georgi Tomov, Nina Penkova


Comparative study of sol-gel derived pure and Nd - doped TiO2 nanopowders

Albena Bachvarova-Nedelcheva, Stancho Yordanov, Reni Iordanova, Irina Stambolova


Photocatalytic degradation of two azo-dyes in single and binary mixture by La modified TiO2

Angelina Stoyanova, Albena Bachvarova-Nedelcheva, Reni Iordanova


Effect of CeO2 dopant on the structure and protection properties of TiO2 sprayed coatings deposited on carbon steel

Stancho Yordanov, Irina Stambolova, Lyuben Lakov, Bojidar Jivov, Vladimir Blaskov, Sasho Vasilev


Synthesis and characterization of supported spinel ferrite catalysts

Tanya Petrova, Nikolay Velinov, Diana Filkova, Ivanka Ivanova, Ivan Ivanov, Iliyana Yordanova, Silvia Todorova, Vasko Idakiev, Nartzislav Petrov, Ivan Mitov


An effect of a natural zeolite on the characteristics of spring or electrochemically activated water

Stoyan Djambazov, Albena Yoleva


Enzymatic decolorization of dyes by laccase immobilized on hybrid carriers

Spaska Yaneva, Nadezhda Rangelova, Lyubomir Aleksandrov, Dancho Danalev


Synthesis and investigation of the properties of hybrid materials for enzyme immobilization

Spaska Yaneva, Vera Semerdzhieva, Raya Raykova, Dessislava Marinkova, Georgi Chernev, Ivo Iliev, Lyubov Yotova

 

Guide for Authors


Table of Contents, iss. 1-6, 2018