نتایج جستجو برای: clay foam ceramic

تعداد نتایج: 59615  

Journal: :Fresenius' journal of analytical chemistry 2000
A Lopez-Molinero A Castro J Pino J Perez-Arantegui J R Castillo

Artificial neural networks with unsupervised learning strategy known as Self-Organizing Maps were applied to classify ancient Roman glazed ceramics. Their clay ceramic bodies were analyzed by Inductively Coupled Plasma-Atomic Emission Spectroscopy and the chemical composition obtained was processed by this neural algorithm. The results obtained provide two types of information: firstly, classif...

Barmar, Mohammad , Farhang Dehghan, Somayeh , Hajizadeh, Roohalah , Jonidi Jafari, Ahmad , Khavanin, Ali ,

Introduction: Nowadays multiple techniques have been developed to noise control. One the most important way is the control based on sound absorption and insulation. The purpose of current study was to improve the acoustic properties of soft polyurethane foam regarding combined sound absorption and insulation characteristics. Materials and Methods: Polyacrylonitrile and polyvinylidine fluoride ...

2003
M. HARUTA Y. SOUMA

-The performance of catalysts in different forms was investigated for the design of a catalytic combustor with hydrogen fuel. The catalysts tested had dimensions of 150 x 150 mm, and consisted of a ceramic honeycomb impregnated with Pt, two Ni metal foams coated with Pd powder which differed from each other in pore size, and a ceramic foam coated with Co-Mn-Ag oxide powder. In the diffusive mod...

2017
Romina Del Rey Antonio Uris Jesús Alba Pilar Candelas

In recent years, natural materials are becoming a valid alternative to traditional sound absorbers due to reduced production costs and environmental protection. This paper reports the acoustical characterization of sheep wool. Measurements on normal incidence and diffuse-incidence sound absorption coefficients of different samples are reported. The airflow resistance has also been measured. The...

2016
Liangfa Hu Morgan O’Neil Veysel Erturun Rogelio Benitez Gwénaëlle Proust Ibrahim Karaman Miladin Radovic

The prospect of extending existing metal-ceramic composites to those with the compositions that are far from thermodynamic equilibrium is examined. A current and pressure-assisted, rapid infiltration is proposed to fabricate composites, consisting of reactive metallic and ceramic phases with controlled microstructure and tunable properties. An aluminum (Al) alloy/Ti2AlC composite is selected as...

2006
Clays

The crystalline swelling of smectites in electrolyte solutions can be controlled by varying the salt concentration of the solutions (Norrish and Quirk 1954, Norrish 1954a, Slade et al 1991). Such osmotic control offers a convenient means of studying the energetics of crystalline swelling. Several X-ray diffraction (XRD) techniques have been developed for measuring the basal spacing of smectites...

Journal: :فصلنامه علمی پژوهشی مهندسی مکانیک جامدات واحد خمینی شهر 0
mohammad ali motallebi master of science, mechanical engineering, islamic azad university of khomeini shahr ebrahim karamian assistant professor, faculty of mechanics, institute of materials, school of materials, islamic azad university, najaf abad magid karimian assistant professor, faculty of mechanics, university of khomeini shahr

nowadays, titanium-based alloys are among the most attractive metallic materials for biomedical applications (as implants) due to their non-biodegradability, low density, good mechanical properties as well as their good biocompatibility. hydroxyapatite (ca10 (po4)6(oh)2, ha) has been widely used for biomedical applications due to its bioactive, biocompatible and osteoconductive properties. firs...

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