The Patterns of Phase Composition and Properties of High-Calcium Low-Density Ceramics Formation Based on Argillous Raw Materials of Various Chemical and Mineralogical Composition

2021 ◽  
Vol 1037 ◽  
pp. 167-173
Author(s):  
Natalia Yatsenko ◽  
Aleksandr I. Yatsenko ◽  
Natalia A. Vil'bitskaya ◽  
Olga I. Sazonova ◽  
Rimma V. Savanchuk
Keyword(s):  
Phase Composition ◽  
Low Temperature ◽  
Raw Materials ◽  
High Strength ◽  
Mineralogical Composition ◽  
Strength Properties ◽  
Low Density ◽  
High Calcium ◽  
Sintering Properties ◽  
Alkaline Oxides

The post-sintering properties of walling high-calcium ceramics based on clay-containing raw materials in low-temperature roasting depend on the chemical-mineralogical composition of clay with different contents of iron, calcium-containing and alkaline oxides that contribute to the formation of new crystalline phases, which provide for the production of low-density ceramic material with high-strength properties.

scholarly journals Mineral binding material with the use of paper manufacturing wastes

2019 ◽  
pp. 16-22
Author(s):  
L.P. Chernyak ◽  
P.G. Varshavets ◽  
N.O. Dorogan ◽  
O.M. Shnyruk
Keyword(s):  
Phase Composition ◽  
Low Temperature ◽  
Raw Materials ◽  
Mineralogical Composition ◽  
Raw Material ◽  
Silicate System ◽  
Paper Manufacturing ◽  
Industrial Use ◽  
Technology Of Production ◽  
Mineral Binder

The possibility of making of mineral astringent material of the low temperature burning at utilization of wastes of production of paper – scope is shown. The analysis of compositions of raw material mixtures on the basis of the system chalk -clay-scope is conducted with varying of concentration of scope at the set descriptions of product of burning. The compositions of mixtures with introduction of 25 - 51 % scope is determinated. The features of phase composition and indexes of properties for mineral astringent with the use of scope as technogenic raw material are shown at the maximal temperature 1100 0С of burning. Industrial use of multi-tonnage waste of various industries, including scopes from paper production, allows to solve complex issues of technology of production of silicate materials, resource conservation and ecology. The feasibility of using scopes as man-made raw materials in the technology of mineral binders is determined by the peculiarities of the chemical and mineralogical composition - the presence of a complete complex of oxides necessary for the formation of a given phase composition during firing and the possibility of intensification of the sintering increase in the reactivity of the silicate system at. The efficiency of practical use of an osprey on the basis of the above developments is defined as the prospect of increasing the volume of utilization of industrial waste, as well as obtaining a new kind of mineral binder material in the low-temperature firing, which differs from romance with improved strength indicators.

Mechanical and Thermal Properties of Magnesia Binder Based on Natural and Technogenic Raw Materials

2021 ◽  
Vol 320 ◽  
pp. 181-185
Author(s):  
Elvija Namsone ◽  
Genadijs Sahmenko ◽  
Irina Shvetsova ◽  
Aleksandrs Korjakins
Keyword(s):  
Thermal Conductivity ◽  
Thermal Properties ◽  
Raw Materials ◽  
High Strength ◽  
Strength Properties ◽  
Waste Materials ◽  
Mechanical And Thermal Properties ◽  
Experimental Part ◽  
Technogenic Raw Materials ◽  
Caustic Magnesia

Because of low calcination temperature, magnesia binders are attributed as low-CO2 emission materials that can benefit the environment by reducing the energy consumption of building sector. Portland cement in different areas of construction can be replaced by magnesia binder which do not require autoclave treatment for hardening, it has low thermal conductivity and high strength properties. Magnesium-based materials are characterized by decorativeness and ecological compatibility.The experimental part of this research is based on the preparation of magnesia binders by adding raw materials and calcinated products and caustic magnesia. The aim of this study was to obtain low-CO2 emission and eco-friendly material using local dolomite waste materials, comparing physical, mechanical, thermal properties of magnesium binders.

Dielectric and Sintering Properties of the Doping CaO-B2O3-SiO2 System Low Temperature Co-Fired Ceramics

2010 ◽  
Vol 434-435 ◽  
pp. 371-375
Author(s):  
Ming He ◽  
Shu Ren Zhang ◽  
Xiao Hua Zhou ◽  
Jian Geng Hu ◽  
Ting Zhang ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Phase Composition ◽  
Low Temperature ◽  
Sintered Density ◽  
Sol Gel ◽  
Calcium Borate ◽  
Sio2 System ◽  
Sintering Properties ◽  
Calcium Silicates ◽  
Temperature Melting

. A doping CaO-B2O3-SiO2 system low temperature co-fired ceramics (LTCC) was prepared with a mixture of high temperature melting glass and sol-gel glass for different ratio. The effects of sol-gel glass content on the microstructure, crystalline phases, sintering properties and dielectric properties of CaO-B2O3-SiO2 system were investigated at 850°C. The results show that the samples with sol-gel glass doping had little change in phase composition, but contained more calcium silicates, and less calcium borate. As the amount of sol-gel glass increased, the shrinkage improved, the sintered density slightly decreased, the dielectric constant (εr) reduced, and the dielectric loss (tgδ) decreased. When the amount of sol-gel glass was 14.5wt%, εr and tgδ of the doping sample were 5.80, 4.6×10-5 (at 1 MHz), respectively. Moreover, the doping system had a good matching ability with gold slurry and Au-Pt-Pd slurry.

Biodegradable Edible Film on the Basis of Apple Waste Products, i.e. Apple Marrow

Food Industry ◽  
2020 ◽  
Vol 5 (1) ◽  
pp. 32-43
Author(s):  
Nadezhda Makarova ◽  
Natalya Eremeeva ◽  
Yana Davydova
Keyword(s):  
Low Temperatures ◽  
Raw Materials ◽  
High Strength ◽  
Edible Films ◽  
Strength Properties ◽  
Film Structure ◽  
Apple Pomace ◽  
Edible Film ◽  
Plastic Properties ◽  
Waste Products

Edible film spread worldwide as an alternative to biodegradable polymer film can partially replace it as a packaging material for a number of food products. The article presents data on the study of samples of one-, two-, three-, four-, five-, six-, seven-, eight-, nine-, ten-layer edible films. Edible films are based on one of the most common types of fruit – apples. The film peculiarity is the Apple pomace introduction into its composition, which is currently not used enough in the food industry and is waste. The researchers studied: a) organoleptic properties (appearance, color, taste, aroma, chewability), surface microstructure of edible films using the laser microscopy; b) film structure by the IR spectroscopy; C) the ratio of the film to water, to the effects of high and low temperatures; d) strength properties. Research results show that the edible multi-layer film based on Apple raw materials with the addition of Apple pomace is quite suitable for organoleptic indicators for use. Despite the presence of individual cracks and voids in the film structure, it has high strength characteristics, is moderately resistant to water and low temperatures, but loses its plastic properties when MV-heating.

Phase composition of high strength binding material based on fine microspherical high-calcium fly ash

2019 ◽  
Vol 216 ◽  
pp. 525-530 ◽  
Author(s):  
O.M. Sharonova ◽  
V.M. Kirilets ◽  
V.V. Yumashev ◽  
L.A. Solovyov ◽  
A.G. Anshits
Keyword(s):  
Phase Composition ◽  
Fly Ash ◽  
High Strength ◽  
Binding Material ◽  
High Calcium ◽  
High Calcium Fly Ash

scholarly journals STUDY OF THE KINETICS OF HYDRATION STRUCTURING AND THE PROPERTIES OF LIME-BELITIC BINDERS BASED OF MARL

Vestnik MGSU ◽  
2016 ◽  
pp. 62-68
Author(s):  
Aleksey Dmitrievich Zhukov ◽  
Marat Orynbaevich Asamatdinov ◽  
Bakhtiyar Chimbergenovich Nurymbetov ◽  
Sharibay Nauryzbaevich Turemuratov
Keyword(s):  
Chemical Composition ◽  
Low Temperature ◽  
Physicochemical Properties ◽  
Calcium Oxide ◽  
Raw Materials ◽  
High Strength ◽  
Dicalcium Silicate ◽  
Different Types ◽  
Materials Used ◽  
Kinetics Of

Lime-belite binder is obtained by low-temperature firing of natural marl, marling or sanding limestone and artificial lime-silica mixtures. The binder with calcium oxide also contains significant amounts of dicalcium silicate and some others materials, the composition and quantity of which depend on the chemical composition and firing temperature of the raw materials used. The authors investigated the kinetics of hydration structures and physicochemical properties of lime-based binders on the basis of belitic marl from Akburly and Porlytau. The formation of resistance is associated not only with the formation of the system of different types of structures - coagulation and crystallization, with the transition of the first to the second, but also with the different stages of formation of crystal structures. The possibility of using lime-belitic binders for the preparation of high-strength products of autoclave hardening is proved. The autoclaved binders used in the manufacture of sand-lime products are prepared with the use of mixtures consisting of 60...70 % lime-belite binder and 30...40 % ground quartz sand.

scholarly journals Влияние низкотемпературной термообработки на развитие сверхэластичности в монокристаллах Ti-50.6 at.% Ni

2019 ◽  
Vol 45 (3) ◽  
pp. 55
Author(s):  
Е.Е. Тимофеева ◽  
Н.Ю. Суриков ◽  
А.И. Тагильцев ◽  
А.С. Ефтифеева ◽  
А.Б. Тохметова ◽  
...  
Keyword(s):  
Martensitic Transformation ◽  
Low Temperature ◽  
Single Crystals ◽  
High Strength ◽  
Strength Properties ◽  
Martensite Formation ◽  
Nanoscale Particles ◽  
Low Temperature Aging ◽  
Temperature Aging

AbstractAs a result of low-temperature aging at 573 K for 1.5 h of Ti–50.6 at% Ni [001]-oriented single crystals quenched from 1253 K, a high-strength state is obtained due to the precipitation of Ti_3Ni_4 nanoscale particles ( d < 10 nm). The aging leads to the development of the B 2– B 19' martensitic transformation through an intermediate R phase, a reduction in the B 19' martensite formation temperatures by 40–60 K, an increase in the strength properties of the B 2 phase from 730 to 2100 MPa, and an extension of the superelasticity interval Δ T _SE in compression from Δ T _SE = 60 to 170 K (compared to quenched crystals).

scholarly journals Comprehensive Simulation of Cooperative Robotic System for Advanced Composite Manufacturing: A Case Study

2021 ◽  
Author(s):  
Manman Yang ◽  
Leijian Yu ◽  
Cuebong Wong ◽  
Carmelo Mineo ◽  
Erfu Yang ◽  
...  
Keyword(s):  
Raw Materials ◽  
High Strength ◽  
Strength Properties ◽  
Robotic System ◽  
Raw Material ◽  
Accurate Localization ◽  
Material Deformation ◽  
Fixed Base ◽  
Material Transportation ◽  
External Forces

Composite materials are widely used because of their light weight and high strength properties. They are typically made up of multi-directional layers of high strength fibres, connected by a resin. The manufacturing of composite parts is complex, time-consuming and prone to errors. This work investigates the use of robotics in the field of composite material manufacturing, which has not been well investigated to date (particularly in simulation). Effective autonomous material transportation, accurate localization and limited material deformation during robotic grasping are required for optimum placement and lay-up. In this paper, a simulation of a proposed cooperative robotic system, which integrates an autonomous mobile robot with a fixed-base manipulator, is presented. An approach based on machine vision is adopted to accurately track the position and orientation of the fibre plies. A simulation platform with a built-in physics engine is used to simulate material deformation under gravity and external forces. This allows realistic simulation of robotic manipulation for raw materials. The results demonstrate promising features of the proposed system. A root mean square error of 9.00 mm for the estimation of the raw material position and 0.05 degrees for the fibre orientation detection encourages further research for developing the proposed robotic manufacturing system.

Phase Composition and Properties of the Low-Temperature Structural Ceramics in the Clay-Calcium Containing Material System

2019 ◽  
Vol 974 ◽  
pp. 331-335
Author(s):  
N.D. Yatsenko ◽  
N.A. Vilbitskaya ◽  
Alexander I. Yatsenko ◽  
Liliya D. Popova
Keyword(s):  
Phase Composition ◽  
Low Temperature ◽  
Alkaline Earth ◽  
Raw Materials ◽  
Ceramic Materials ◽  
Chemical Processes ◽  
Material System ◽  
Structural Ceramics ◽  
Physical And Chemical ◽  
The Given

The ceramic materials structure formation with the given esthetics-consumer properties is the most important mission of the modern production and should be based on the knowledge of physical and chemical processes, which are flowing past in masses based on the systems differing in the content of alkaline, alkaline-earth oxides and oxides of iron in clay raw materials.

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