Biaxial flexural strength, elastic moduli, and x-ray diffraction characterization of three pressable all-ceramic materials

2003 ◽  
Vol 89 (4) ◽  
pp. 374-380 ◽  
Author(s):  
Mohammad Albakry ◽  
Massimiliano Guazzato ◽  
Michael Vincent Swain
Keyword(s):  
Flexural Strength ◽  
Elastic Moduli ◽  
Ceramic Materials ◽  
X Ray Diffraction ◽  
X Ray ◽  
All Ceramic ◽  
Biaxial Flexural Strength

scholarly journals Preparation and Characterization of Porous Ceramic Membranes for Micro-Filtration from Clay/CuZn Using Extrusion Methods

2018 ◽  
Vol 156 ◽  
pp. 08015 ◽  
Author(s):  
Muh Amin ◽  
Muhammad Subri
Keyword(s):  
Porous Ceramic ◽  
Ceramic Materials ◽  
Ceramic Membranes ◽  
Extrusion Process ◽  
X Ray Diffraction ◽  
Percentage Composition ◽  
X Ray ◽  
Ceramic Support ◽  
Fabrication And Characterization

In this study, fabrication and characterization of ceramic membranes preparation was carried out. Porous ceramic membranes were fabricated by extrusion process from different percentage composition of CuZn on (80 wt% Clay, 10 wt% TiO2, 5 wt% Carbon and 5 wt% PVA). The fabricated membranes were sintered at 900°C for 1 hour in an electrical box furnace with heating rate 1oC/min and holding time for 1 hour. Apparent density and porosity were determined by standar methods for ceramic materials. Phase composition of the ceramic support was established by X-Ray Diffraction analysis. SEM studies of the membranes added at different CuZn were carried out.

scholarly journals Characterization Of Microstructure And Selected Properties of SnSbCu Alloy After FSP

2021 ◽  
Author(s):  
Joanna Hrabia-Wiśnios ◽  
Beata Leszczyńska-Madej ◽  
Marcin Madej ◽  
Aleksandra Węglowska
Keyword(s):  
Flexural Strength ◽  
Diffraction Method ◽  
Compression Tests ◽  
X Ray Diffraction ◽  
Linear Speed ◽  
X Ray ◽  
Friction Stir ◽  
Before And After ◽  
Bearing Alloy

Abstract The paper presents the results of research on the microstructure and selected mechanical properties of the SnSbCu bearing alloy after friction stir processing (FSP). The Whorl tool was used for modification; the process was carried out using two rotational speeds of the tool: 280 and 450 RPM and a constant linear speed of 355 mm/min. Microstructure studies were performed employing the techniques of light microscopy and scanning electron microscopy along with analysis of the chemical composition of micro-areas. Additionally, the phase composition was investigated by means of the X-ray diffraction method and statistical analysis of the precipitates present in the investigated alloy. In addition, hardness, flexural strength and uniaxial compression tests were performed before and after FSP modification. It was proved that using FSP to modify the SnSbCu alloy promotes refinement and homogenization of the microstructure, as well as improvement of the flexural strength, whereas no changes in the hardness level were found.

An Investigation and Characterization of Monkeypod Tree Flower Particulates Filled PLA Composites

2021 ◽  
Author(s):  
Balaji Ayyanar Chninnappan ◽  
K. Marimuthu ◽  
C. Bharathiraj ◽  
B. Gayathri ◽  
S. K. Pradep Mohan
Keyword(s):  
Tensile Strength ◽  
Flexural Strength ◽  
Thermo Gravimetric Analysis ◽  
Injection Molding Process ◽  
Gravimetric Analysis ◽  
X Ray Diffraction ◽  
Molding Process ◽  
X Ray ◽  
Samanea Saman

Abstract Samanea saman (SS) flower particulates were filled in Polylactic acid (PLA) composites were fabricated with different 0, 10, and 20 wt. % through the injection molding process. The elemental composition and morphology of SS PLA composites were studied through FESEM and Energy Dispersive X-ray analysis. Thermal stability of the SS PLA composites specimens was carried out through Thermo Gravimetric Analysis (TGA) and Differential Scanning Calorimeter (DSC). Crystal orientations studied through X-Ray Diffraction (XRD) showed the presence of the orthorhombic SS particulates. The properties of the composites were investigated such as tensile strength, compressive strength, flexural strength, and Shore D Hardness. It was found that 20 wt. % of SS filled PLA composites has a superior tensile strength of 43.76 MPa, the compression strength of 37.94 MPa, the flexural strength of 72.47 MPa, and Shore D Hardness of 80.1 SHN than pure PLA. SS particulates-filled PLA composites would be used for low-strength applications.

Synthesis and Characterization of Cordierite, Mullite and Cordierite-Mullite Ceramic Materials using Coal Fly Ash as Raw Material

MRS Advances ◽  
2017 ◽  
Vol 2 (62) ◽  
pp. 3865-3872
Author(s):  
J. López-Cuevas ◽  
E. Interial-Orejón ◽  
C.A. Gutiérrez-Chavarría ◽  
J.C. Rendón-Ángeles
Keyword(s):  
Fly Ash ◽  
Flexural Strength ◽  
Vickers Microhardness ◽  
Coal Fly Ash ◽  
Ceramic Materials ◽  
Raw Material ◽  
X Ray Diffraction ◽  
Mullite Ceramic ◽  
Two Temperatures

AbstractCordierite (Mg2Al4Si5O18), Mullite (Al4+2xSi2-2xO10-x) and Cordierite-Mullite ceramic materials were obtained from a stoichiometric mixture of coal fly ash (CFA) as a source of SiO2 and Al2O3, plus high-purity MgO and Al2O3. The starting stoichiometric mixtures were homogenized, and then uniaxially pressed, cold isostatically pressed, and sintered at 1200-1600 °C for 2-5 h. The sintered materials were characterized by X-ray diffraction, scanning electron microscopy, Vickers microhardness, density and four-point flexural strength. In general, the desired phases tended to form in the composites at temperatures of 1350 or 1400 °C, with a considerable amount of glassy phase developing from 3 h onwards at one of those two temperatures, depending on the composite composition. The microstructure of the composites consisted of a matrix of Cordierite and interwoven needles of Mullite. The bulk density decreased, while the flexural strength and the Vickers microhardness increased with increasing nominal content of Mullite in the composites. A synergistic effect taking place between Cordierite and Mullite enhances the mechanical properties of the composites.

Characterization of Indium addition on Sn-Bi-Sb Lead free Solder alloy

2016 ◽  
Vol 12 (2) ◽  
pp. 4231-4243 ◽  
Author(s):  
Sara Mosaad Mahlab ◽  
Mustafa Kamal ◽  
Abd El-Raouf Mohamed Mansour
Keyword(s):  
Elastic Moduli ◽  
Resonance Method ◽  
Lead Free Solder ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
X Ray ◽  
Lead Free Solder Alloy ◽  
Free Solder ◽  
Rapidly Solidified

The aim of these work is to measure the effect of the addition of In with different atomic percent weight on structure, melting, Electrical and mechanical properties of Sn70-X at.% -Bi15 at.% -Sb15 at.%- Inx at.%  rapidly solidified. X-ray diffraction analysis (XRD), differential scanning calorimetry (DSC), temperature dependence of resistivity (TDR), and mechanical resonance method are performed. It's found that electrical conductivity (σ) and thermal conductivity (K) increased gradually by increasing In at.%. Melting temperature reduced from 470.12 K for Sn70 at.%- Bi15 at.%- Sb15 at.% to 427.13 K in Sn61 at.%- Bi15 at.%- Sb15 at.%- In9 at.%. Also, elastic moduli, internal friction and thermal diffusivity measured from melt-quenched ribbons. 

Quality Characterization of Iron Dust Exhaust Thermal as Alternative Ceramic Coating Raw Materials in a Brazilian Company

2014 ◽  
Vol 1077 ◽  
pp. 135-138
Author(s):  
Luiz Oliveira Veriano dalla Valentina ◽  
Marilena Valadares Folgueras ◽  
Wanessa Rejane Knop ◽  
Maria Cristina Pacheco do Nascimento ◽  
Glaucia Aparecida Prates
Keyword(s):  
Ceramic Coating ◽  
Raw Materials ◽  
Ceramic Materials ◽  
Raw Material ◽  
Silica Sand ◽  
Commercial Application ◽  
X Ray Diffraction ◽  
X Ray ◽  
Materials Used

As the raw materials used in the ceramic materials manufacturing are natural, it is important to use them as a alternative materials, thus decreasing the elements demand taken from nature. This paper aims the characterization of foundry solid powder exhaust from a brazilian company located in Joinville - SC as an alternative raw material for ceramic coating by X-ray diffraction (XRD), thermal analysis (DSC) and thermogravimetric (TG). The dust depletion is caused in the manufacturing mold sand process, when the bentonita (clay), silica sand and coal during the metal parts production are mixed in green sand production. The raw materials were characterized through X-ray diffraction (XRD), thermal (DSC) and thermogravimetric analisys (TG). The atomized powder thermogravimetric analysis curve shows three intervals associated with the mass loss and it is typical of clay commercial application.

scholarly journals Characterization of microstructure and selected properties of SnSbCu alloy after FSP

2021 ◽  
Author(s):  
Joanna Hrabia-Wiśnios ◽  
Beata Leszczyńska-Madej ◽  
Marcin Madej ◽  
Aleksandra Węglowska
Keyword(s):  
Flexural Strength ◽  
Diffraction Method ◽  
Compression Tests ◽  
X Ray Diffraction ◽  
Linear Speed ◽  
X Ray ◽  
Friction Stir ◽  
Before And After ◽  
Bearing Alloy

AbstractThe paper presents the results of research on the microstructure and selected mechanical properties of the SnSbCu-bearing alloy after friction stir processing (FSP). The Whorl tool was used for modification; the process was carried out using two rotational speeds of the tool: 280 and 450 RPM and a constant linear speed of 355 mm/min. Microstructure studies were performed employing the techniques of light microscopy and scanning electron microscopy along with analysis of the chemical composition of micro-areas. Additionally, the phase composition was investigated by means of the X-ray diffraction method and statistical analysis of the precipitates present in the investigated alloy. In addition, hardness, flexural strength, and uniaxial compression tests were performed before and after FSP modification. It was proved that using FSP to modify the SnSbCu alloy promotes refinement and homogenization of the microstructure, as well as improvement of the flexural strength, whereas no changes in the hardness level were found.

X-RAY DIFFRACTION CHARACTERIZATION OF ELASTIC STRAIN IN COMPOSITION MODULATED LAYERED STRUCTURES

1985 ◽  
Vol 56 ◽  
Author(s):  
A. F. JANKOWSKI ◽  
P. A. STEINMEYER
Keyword(s):  
Noble Metals ◽  
Elastic Moduli ◽  
Layered Structures ◽  
Lattice Parameter ◽  
X Ray Diffraction ◽  
X Ray ◽  
State Of Stress ◽  
Pole Figures ◽  
Ray Methods

AbstractX-ray diffraction techniques are utilized to characterize the biaxial state of stress in thermal vapor deposited, composition modulated layered structures. Thin film systems, as Au-Ni, Cu-Pd, Ag-Pd, Cu-Ni and Cu-NiFe, have manifested the ‘supermodulus effect’ as a mechanical property. The concept of interlayer coherency gives rise to the notion of accommodating misfit strains between the layers. In turn, such large elastic strains have been shown to cause large increases in the elastic moduli (the ‘supermodulus effect’) of noble metals. In the present work, pole figures are used to determine the texture and crystallographic orientations of these foils, and standard x-ray methods are then used to quantify this strain with lattice parameter measurements and diffraction peak profiles.

Synthesis and Characterization of Cubic Zirconia, (Zr,Gd,Pu)O2, Doped with 238Pu

2002 ◽  
Vol 713 ◽  
Author(s):  
Boris E. Burakov ◽  
Evgeniy B. anderson ◽  
Maria V. Zamoryanskaya ◽  
Maria A. Yagovkina ◽  
Elena V. Nikolaeva
Keyword(s):  
Extended Period ◽  
Ceramic Materials ◽  
Deionized Water ◽  
X Ray Diffraction ◽  
X Ray ◽  
Cubic Zirconia ◽  
Ceramic Synthesis ◽  
Crystalline Ceramic ◽  
Diffraction Patterns

ABSTRACTCrystalline ceramic materials based on the cubic zirconia structure have been proposed as candidate waste forms for the immobilization of weapons grade Pu and other actinides. To evaluate a resistance of these materials to self-irradiation for extended period of time, polycrystalline samples of gadolinia-stabilized cubic zirconia, (Zr,Gd,Pu)O2, doped with approximately 10 wt.% 238Pu were synthesized and characterized. Ceramic synthesis was done by sintering in air at 1500°C for 4 hours using starting precursor materials based on coprecipitated and then calcined oxalates of Zr, Gd, Pu. No differences were observed among the zirconia X-ray diffraction patterns that were obtained immediately after ceramic synthesis, or at 88 and 201 days later. MCC-1 leach tests were performed on ceramic specimens in deionized water at 90°C for 28 days. It was found that without correction for ceramic porosity the initial Pu mass loss (NL) was 0.04 g/m2. This increased to 0.35 and 0.37 g/m2, respectively, 180 and 260 days later. Results obtained allow us to confirm that actinide-doped cubic zirconia is highly resistant to accelerated self-irradiation and therefore, is an efficient material for actinide immobilization in deep geological repositories.

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