Crystallization Peculiarities of White Glass-Enamel Coatings for Steel Products

2019 ◽  
Vol 945 ◽  
pp. 665-669
Author(s):  
L.V. Klimova ◽  
A.V. Ryabova ◽  
A.Yu. Fanda
Keyword(s):  
Process Parameters ◽  
Chemical Properties ◽  
Glass Enamel ◽  
Physical And Chemical Properties ◽  
Whiteness Index ◽  
Bulk Crystallization ◽  
Produce Glass ◽  
Physical And Chemical ◽  
Glass Enamel Coatings ◽  
And Chemical Properties

The aim of the research was to study the influence of small additives on the crystallization of titanium-containing phases in glass and the influence of the process parameters on the whiteness of the covering glass enamel coatings. A number of compositions of initial glasses (frits) were synthesized to produce glass coatings with high whiteness. Their physical and chemical properties were analyzed. A titanium-containing glass enamel coatings were developed, the composition of which contains compounds that promote bulk crystallization, which ensures a high whiteness index.

CERAMICS BASED ON ORGANOSILICON POLYMERS-PRECURSORS: METHODS OF PREPARATION AND PROPERTIES (review)

2020 ◽  
pp. 76-92
Author(s):  
A.M. Shestakov ◽  
Keyword(s):  
Process Parameters ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Structure And Properties ◽  
Influence Of Process Parameters ◽  
Preceramic Polymers ◽  
Composition Structure ◽  
Physical And Chemical ◽  
And Chemical Properties ◽  
Organosilicon Polymers

The main types of preceramic organosilicon polymers, general methods of their synthesis and physical, and chemical properties are considered. Methods of shaping, curing and pyrolysis of polymers and the influence of process parameters on the composition, structure and properties of ceramics are described. Separately, the work considers modifying fillers for preceramic polymers, the goals and methods of their introduction into the polymer, the features of processing the compositions and the properties of the products obtained.

Statistical criteria of stellar population types

1966 ◽  
Vol 24 ◽  
pp. 101-110
Author(s):  
W. Iwanowska
Keyword(s):  
Stellar Population ◽  
Chemical Properties ◽  
Spectrophotometric Study ◽  
Physical And Chemical Properties ◽  
Population Type ◽  
The Galaxy ◽  
Distribution Parameters ◽  
Physical And Chemical ◽  
Statistical Criteria ◽  
And Chemical Properties

In connection with the spectrophotometric study of population-type characteristics of various kinds of stars, a statistical analysis of kinematical and distribution parameters of the same stars is performed at the Toruń Observatory. This has a twofold purpose: first, to provide a practical guide in selecting stars for observing programmes, second, to contribute to the understanding of relations existing between the physical and chemical properties of stars and their kinematics and distribution in the Galaxy.

Response of corn (Zea mays L.) to various organic-based fertilizers in marginal upland of Sta. Rita, Samar

2017 ◽  
pp. 31-43
Author(s):  
Berta Ratilla ◽  
Loreme Cagande ◽  
Othello Capuno
Keyword(s):  
Block Design ◽  
Management Strategies ◽  
Chemical Properties ◽  
Organic Fertilizers ◽  
Growth And Yield ◽  
Physical And Chemical Properties ◽  
Total N ◽  
Randomized Complete Block Design ◽  
Physical And Chemical ◽  
And Chemical Properties

Organic farming is one of the management strategies that improve productivity of marginal uplands. The study aimed to: (1) evaluate effects of various organic-based fertilizers on the growth and yield of corn; (2) determine the appropriate combination for optimum yield; and (3) assess changes on the soil physical and chemical properties. Experiment was laid out in Randomized Complete Block Design, with 3 replications and 7 treatments, namely; T0=(0-0-0); T1=1t ha-1 Evans + 45-30-30kg N, P2O5, K2O ha-1; T2=t ha-1 Wellgrow + 45-30-30kg N, P2O5, K2O ha-1; T3=15t ha-1 chicken dung; T4=10t ha-1 chicken dung + 45-30-30kg N, P2O5, K2O ha-1; T5=15t ha-1 Vermicast; and T6=10t ha-1 Vermicast + 45-30-30kg N, P2O5, K2O ha-1. Application of organic-based fertilizers with or without inorganic fertilizers promoted growth of corn than the control. But due to high infestation of corn silk beetle(Monolepta bifasciata Horns), its grain yield was greatly affected. In the second cropping, except for Evans, any of these fertilizers applied alone or combined with 45-30-30kg N, P2O5, K2O ha-1 appeared appropriate in increasing corn earyield. Soil physical and chemical properties changed with addition of organic fertilizers. While bulk density decreased irrespective of treatments, pH, total N, available P and exchangeable K generally increased more with chicken dung application.

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