Influence of Glassy Additives on the Formation of Crystalline Phases in Sintered Red Ceramic Bodies

2015 ◽  
Vol 1765 ◽  
pp. 77-82
Author(s):  
A.F. Chávez-Villanueva ◽  
G. Vargas-Gutiérrez ◽  
J. López-Cuevas ◽  
C.M. López-Badillo
Keyword(s):  
Sintering Temperature ◽  
Research Work ◽  
Soda Lime ◽  
Glass Frit ◽  
Sem Analysis ◽  
Soda Lime Glass ◽  
Nominal Composition ◽  
Sintering Process ◽  
Crystalline Phases ◽  
Floor Tiles

ABSTRACTThe main objective of this research work was to study the influence of glassy additives on the formation of crystalline phases in sintered red ceramic bodies used for the fabrication of ceramic floor tiles, whose composition is a mixture of quartz (SiO2), kaolinite [Al2Si2O5(OH)4], albite (NaAlSi3O8), muscovite [KAl2(Si3Al)O10(OH)2] and calcite (CaCO3). The additives used were: fly ash, soda-lime glass, borosilicate glass, glass frit, Na2P3O10 and cryolite (Na3AlF6). These were added in variable proportions to the nominal composition of the red ceramic bodies, either as single or as combined additions, aiming to accelerate the densification of the materials during their sintering process. For all the additive types used, the crystalline phases formed in the samples sintered using a peak temperature ranging from 950 to 1030 °C were: quartz (SiO2), anorthite (CaAl2Si2O8), and hematite (Fe2O3). It is known that the presence of anorthite is particularly beneficial for the mechanical properties, chemical stability and densification of the sintered red ceramic bodies. However, some of the considered additions tended to be detrimental for the formation of this phase in the studied materials, especially at the lowest peak sintering temperature employed. This was verified by means of XRD and SEM analysis.

Low temperature hermetic laser-assisted glass frit encapsulation of soda-lime glass substrates

2017 ◽  
Vol 96 ◽  
pp. 107-116 ◽  
Author(s):  
Seyedali Emami ◽  
Jorge Martins ◽  
Luísa Andrade ◽  
Joaquim Mendes ◽  
Adélio Mendes
Keyword(s):  
Low Temperature ◽  
Soda Lime ◽  
Glass Frit ◽  
Soda Lime Glass ◽  
Glass Substrates

The Formation of Cobalt Chromium Molybdenum (CoCrMo) Foams Fabricated by Slurry Method

2016 ◽  
Vol 840 ◽  
pp. 197-201
Author(s):  
Sufizar Ahmad ◽  
M. Rosli ◽  
Nur Suliani Abdul Manaf ◽  
Murni Faridah Mahammad Rafter ◽  
Fazimah Mat Noor
Keyword(s):  
Sintering Temperature ◽  
Average Pore Size ◽  
Sem Analysis ◽  
High Porosity ◽  
Sintering Process ◽  
Cobalt Chromium ◽  
Average Pore ◽  
Slurry Method ◽  
Cobalt Chromium Molybdenum ◽  
Orthopedic Applications

Cobalt Chromium Molybdenum (CoCrMo) is a metal that are widely used in the biomedical field of orthopedic applications. CoCrMo foam was developed in the form of a porous structure where it has a high porosity on the surface with the different pore sizes and shapes. This research is intended to produce CoCrMo foam by using slurry method and to study the effect of composition and sintering temperature on the metal foams. The slurry of CoCrMo was prepared by mixing the binder materials of Methylcellulose (CMC), Polyethylene Glycol (PEG) and distilled water for an hour. Followed by mixing and stirring the CoCrMo powder for another 1 hour until it becomes slurries. Polyurethane (PU) foam was then impregnated into the slurry and dried for a day in the oven with 60 °C. Sintering process is carried out at temperature of 1000 °C, 1100 °C and 1200 °C using a tube furnace. Then sample of CoCrMo foam was going through a shrinkage measurement, microstructure analysis by using Scanning Electron Microscope (SEM), analysis of element by using Energy Diffraction X-ray (EDX) and also the density and porosity test by using Archimedes method. The sample with the composition of 65wt% was the best result in this experiment. While sintering temperature of 1200 °C produced the highest number of porosities. The shrinkage percentage is from 2.67% to 14.13%. The density obtained is in between 1.538 g/cm3 and 2.706 g/cm3 while the percentage of porosity is from 50.284% to 78.934%. The average pore size is in the range of 249.63μm to 445.38μm. The best sintering temperature and composition to produced high porosity were on 1200 °C and 65wt%.

Fabrication of Cu2ZnSn(S,Se)4 solar cells by printing and high-pressure sintering process

2013 ◽  
Vol 1538 ◽  
pp. 179-183 ◽  
Author(s):  
Feng Gao ◽  
Tsuyoshi Maeda ◽  
Takahiro Wada
Keyword(s):  
Solid Solution ◽  
High Pressure ◽  
Solar Cells ◽  
Solar Cell ◽  
Soda Lime ◽  
Soda Lime Glass ◽  
Sintering Process ◽  
Device Structure ◽  
Gas Atmosphere ◽  
High Pressure Sintering

ABSTRACTWe fabricated Cu2ZnSn(SxSe1-x)4 (CZTSSe) solar cells by a printing and high-pressure sintering (PHS) process. First, the CZTSSe solid solution powders were synthesized by heating the elemental mixtures at 550oC for 5 h in an N2 gas atmosphere. We fabricated CZTSSe films by a printing and high-pressure sintering (PHS) process. The obtained dense CZTSSe film was post-annealed at 550oC for 10 min under an N2 +5% H2S gas atmosphere. We fabricated CZTSSe solar cells with the device structure of Ag/ITO/i-ZnO/CdS/CZTSSe/Mo/soda-lime glass. The CZTSSe solar cell showed an efficiency of 2.1%, with Voc of 272 mV, Jsc of 18.0 mA/cm2 and FF of 0.44.

Fabrication of Simple Diode Structure FED Device with Connecting Plate

2010 ◽  
Vol 428-429 ◽  
pp. 436-439 ◽  
Author(s):  
Yu Kui Li ◽  
Cong Li
Keyword(s):  
Field Emission ◽  
Glass Plate ◽  
Soda Lime ◽  
Glass Frit ◽  
Diode Structure ◽  
Large Field ◽  
Soda Lime Glass ◽  
Display Device ◽  
Thin Glass ◽  
Field Emission Properties

By using the thick soda-lime glass plate and the flat thin glass, the connecting plates were formed easily. The carbon nanotube materials were prepared to form the field emitters. The simple small diode structure field emission display device with connecting plate was developed. The detailed fabrication technology for the whole device was also presented. The sealing of the vacuum room was performed by means of glass frit and the gas in the vacuum room could be evacuated out through the exhaust tube. The developed diode structure FED sample exhibited large field emission current, better field emission properties and image display performance.

Titanium Incorporation to In2S3 Thin Films for Photovoltaic Applications

2009 ◽  
Vol 1165 ◽  
Author(s):  
Begoña Asenjo ◽  
José Herrero ◽  
M. Teresa Gutiérrez
Keyword(s):  
Thin Films ◽  
Soda Lime ◽  
Sem Analysis ◽  
Morphological Properties ◽  
Soda Lime Glass ◽  
X Ray Diffraction ◽  
Solution Deposition ◽  
Photovoltaic Applications ◽  
Amorphous Nature ◽  
Titanium Incorporation

AbstractPreliminary studies on the properties of undoped and Ti-doped In2S3 thin films grown on soda lime glass by chemical solution deposition under different conditions are presented. Different physical, chemical and morphological properties of the films have been analysed. At the beginning of the deposition of In2S3 films, In2O3 and In(OH)3 deposited by electroless-chemical reaction are dominant. The optical properties observed for Ti-In2S3 films show the partial contribution of the electronic transitions. The study is completed with SEM analysis which shows the influence of the deposition time and the precursor used, in the morphology for incorporation of titanium at the beginning of deposition and X-ray diffraction when is observed the amorphous nature of the films.

Influence of Al, In codoping in enhancing the Figure of Merit of ZnO thin films for TCO Applications

MRS Advances ◽  
2016 ◽  
Vol 1 (2) ◽  
pp. 133-139 ◽  
Author(s):  
Vinoth Kumar Jayaraman ◽  
Arturo Maldonado Alvarez ◽  
Maria De la Luz Olvera Amador
Keyword(s):  
Thin Films ◽  
Zinc Acetate Dihydrate ◽  
Ultrasonic Spray Pyrolysis ◽  
Soda Lime ◽  
Sem Analysis ◽  
Zno Thin Films ◽  
Soda Lime Glass ◽  
Glass Substrates ◽  
Ultrasonic Spray ◽  
Different Temperatures

ABSTRACTAIZO (Al and In codoped ZnO) thin films were deposited on soda lime glass substrates by the ultrasonic spray pyrolysis (USP) technique. The spraying solution was prepared from zinc acetate dihydrate, aluminum acetyl acetonate and indium acetate. Depositions were carried out at three different temperatures, 425, 450 and 475 °C. Structural, morphological, optical and electrical properties were examined with respected to the deposition temperatures. All AIZO films grown with (002) preferential orientation confirmed from X-ray diffraction analysis. Hexagonal nanostructures were observed from Scanning electron microscopy (SEM) analysis. Minimum electrical resistivity of 2.52 x10-3 Ω-cm was achieved for AIZO films.

scholarly journals Processing Analysis of Nanoparticle Filled PTFE: Restrictions and Limitations of High Temperature Production

Polymers ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2044
Author(s):  
Levente Ferenc Tóth ◽  
Patrick De Baets ◽  
Gábor Szebényi
Keyword(s):  
Thermal Stability ◽  
Mass Loss ◽  
Room Temperature ◽  
Sintering Temperature ◽  
Research Work ◽  
Decomposition Analysis ◽  
High Thermal Stability ◽  
Al2o3 Content ◽  
Sintering Process ◽  
Sintering Method

In this research work, unfilled and monofilled polytetrafluoroethylene (PTFE) were investigated. The applied fillers were graphene, alumina (Al2O3), boehmite alumina (BA80) and hydrotalcite (MG70). Graphene and Al2O3 are already known in the literature as potential fillers of PTFE, while BA80 and MG70 are novel fillers in PTFE. Materials were produced by room temperature pressing—free sintering method with a maximum sintering temperature of 370 °C. The mass loss and decomposition analyses were carried out by thermogravimetric analysis (TGA) in two different ways. The first was a sensitivity analysis to gain a better view into the sintering process at 370 °C maximal temperature. The second was a heating from 50 °C up to 1000 °C for a full-scale decomposition analysis. BA80 is a suitable filler for PTFE, as most of its functional groups still existed after the sintering process. Both PTFE and Al2O3 had high thermal stability. However, when Al2O3 was incorporated in PTFE, a remarkable mass loss was observed during the sintering process, which indicated that the decomposition of PTFE was catalysed by the Al2O3 filler. The observed mass loss of the Al2O3-filled PTFE was increased, as the Al2O3 content or the applied dwelling time at a 370 °C sintering temperature increased.

Hardness, Density and Porosity of Al/(SiCw+Al2O3p) Composite by Powder Metallurgy Process without and with Sintering

2015 ◽  
Vol 776 ◽  
pp. 246-252 ◽  
Author(s):  
Ketut Suarsana ◽  
Rudy Soenoko
Keyword(s):  
Powder Metallurgy ◽  
Test Specimen ◽  
Sintering Temperature ◽  
Physical And Mechanical Properties ◽  
Sem Analysis ◽  
Holding Time ◽  
Sintering Process ◽  
Interface Bonding ◽  
Powder Metallurgy Process ◽  
Metallurgy Process

Al/(SiCw+Al2O3p) composite was a blend of fine aluminum powder serving as a matrix while Silicon Carbid whiskers (SiCw) and Alumina (Al2O3p) as a reinforcement. Powder metallurgy was used for the manufacture of composites according to the shape of the test specimen. Parameter testing was conducted with varied sintering holding time of 1 h, 3 h and 6 h at a sintering temperature of 500°C and 600°C. This study was conducted to know hardness properties, density, porosity and SEM analysis. The results show that the sintering process which has been conducted affects the physical and mechanical properties of the composite. Increased hardness and density occur due to the stronger or more dense interface bonding between matrix and reinforcement which are affected by the increase in the holding time and sintering temprature, where the highest is at 6 hours with 600°C, while the porosity decreases inversely proportional to the density and the hardness that occur in composite materials.

Highly efficient biocide silver-doped soda lime glass for application in water quality optical sensors

2020 ◽  
Vol 111 (10) ◽  
pp. 857-862
Author(s):  
Branimir Bajac ◽  
Jovana Stanojev ◽  
Slobodan Birgermajer ◽  
Milena Radojevic ◽  
Jovan Matovic
Keyword(s):  
Water Quality ◽  
Optical Sensors ◽  
Soda Lime ◽  
Soda Lime Glass ◽  
Highly Efficient
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