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Year 1999 No 4

Blacha L., Steindor J.
MÖGLICHKEITEN DER BI - ENTFERNUNG AUS FLÜSSIGEM CU DURCH VERDAMPFEN
Keywords:
No 4 (1999), p. 240-250
  mag01.pdf (112 kB)
mag01_eng.txt (429 B)  

Ballóková B., Hvizdoš P., Lofaj F.
MICROSTRUCTURE AND FRACTURE MECHANICAL PROPERTIES
Keywords:
No 4 (1999), p. 251-256
  mag02.pdf (86 kB)
mag02_eng.txt (2 kB)  

Plešingerová B., Kriššaková S., Števulová N., Trpčevská J.
CHARACTERISATION OF MA-SPINEL OBTAINED BY SOLID-STATE SYNTHESIS FROM POWDERY MG AND AL OXIDES AND HYDROXIDES
Keywords: MA-spinel|solid-state synthesis|conversion to spinel|mechanochemical reaction|
No 4 (1999), p. 257-266
  mag03.pdf (223 kB)
mag03_eng.txt (2 kB)  

Raschman P.
UNCERTAINTY OF KINETIC LEACHING DATA INTRODUCED BY APPLIED EXPERIMENTAL PROCEDURE
Keywords: leaching|kinetics|experiment|measurement|sources of inaccuracy|
No 4 (1999), p. 267-274
  mag04.pdf (203 kB)
mag04_eng.txt (3 kB)  

Fedoročková A.
EFFECT OF REACTION CONDITIONS ON DISSOLUTION OF MAGNESIUM, IRON AND CALCIUM DURING LEACHING OF BURNED MAGNESITE IN HYDROCHLORIC ACID
Keywords: leaching|burned magnesite|hydrochloric acid|magnesium|calcium|iron|
No 4 (1999), p. 275-279
  mag05.pdf (189 kB)
mag05_eng.txt (1 kB)  

Mihok Ľ., Fedičová D., Weagová Z., Potocký Ľ., Öveçoglü M.L.
INFLUENCE OF GANGUE CONTENT ON PROPERTIES OF BLAST FURNACE PELLETS
Keywords: blast furnace pellets|gangue content|
No 4 (1999), p. 280-287
  mag06.pdf (147 kB)
mag06_eng.txt (448 B)  

Plešingerová B., Macáková J., Klapáč M.
DETERMINATION OF DIMENSIONS OF THE PATTERN FOR THE MANUFACTURING OF PLASTER MOULDS FROM SHRINKAGE OF CERAMIC BODY
Abstract
The difference in dimension of the final ceramic products made by casting and of the casting mould depends on the properties of the body, namely on its shrinkage by drying and firing. The determination of dimensions of the patterns for the products cast into plaster moulds must be preceded by verification of the production technology, by a thorough testing of the body and by determination of changes in dimensions during drying and firing. The aim of this paper was to compare the results of laboratory and pilot-plant tests of determination of shrinkage by drying and firing of the body for stove-tiles made by casting. The final results of pilot-plant tests of shrinkage showed 0,1-0,2 % higher values than those of laboratory tests. This difference is mainly caused by the drying process.

Keywords: dimensions of pattern|shrinkage of ceramic body|casting|
No 4 (1999), p. 288-293
  mag07.pdf (194 kB)
mag07_eng.txt (810 B)  

Cehlár M., Kyseľová K.
FEASIBILITY STUDY AND HER CALCULATIVE EXECUTION
Keywords: investment analysis|ash-flow|internal rate of return|net present value|pay back period|
No 4 (1999), p. 294-309
  mag08.pdf (265 kB)
mag08_eng.txt (2 kB)