Results 31 to 40 of about 6,649 (149)

Modulación composicional en la perovskita “PbCrO₃” y su influencia en las propiedades

Boletín de la Sociedad Española de Cerámica y Vidrio, 2010
In this work, we revisited the “PbCrO3” perovskite. In the late 60’s, it was claimed to be cubic and a G-type antiferromagnetic material (1, 2). We have encountered that an intrinsic compositional modulation is present and shows a deficiency in lead of ...
Alario-Franco, Á., Arévalo-López, Á. M., Dos Santos-García, A. J.   +2 more
doaj  

Talc‐Tempered Pottery From Bala Hissar, Kabul: An Analytical Study

Archaeometry, EarlyView.
ABSTRACT Potsherds of cooking ware excavated at Bala Hissar archaeological site in Kabul were studied using X‐ray fluorescence (XRF), scanning electron microscope‐energy dispersive X‐ray spectrometry (SEM‐EDS), Raman spectroscopy, X‐ray powder diffraction (XRPD), thermogravimetric analysis (TGA) and optical microscopy.
Parviz Holakooei, Babak Rafiei‐Alavi, Hafizullah Hazim, Hasti Pezeshkanjalili, Lara Maritan   +4 more
wiley   +1 more source

Ceramic ecology in an Islamic capital: changes in the production and consumption of pottery in Palermo

Early Medieval Europe, EarlyView.
Palermo became the new capital of Sicily after the Aghlabid conquest in 831. The transformation of the city into a capital took many forms, including the production and consumption of pottery. The perspective from ceramic evidence shows that Palermo underwent faster and deeper processes of Islamization than other urban and rural contexts across the ...
Viva Sacco
wiley   +1 more source

Structural determination of new solid solutions [Y2-x Mx ][Sn2-x Mx ]O7-3x/2 (M = Mg or Zn) by Rietveld method [PDF]

Processing and Application of Ceramics, 2010
New [Y2-x Mx][Sn2-x Mx]O7-3x/2 (0 ≤x≤ 0.30 for M = Mg and 0 ≤x≤ 0.36 for M = Zn) solid solutions with the pyrochlore structure were synthesized via high-temperature solid-state reaction method.
Mohamed Douma, El Hossain Chtoun, Raquel Trujillano, Vicente Rives   +3 more
doaj  

Hydraulic fast‐setting calcium silicate cement for crown cementation

Journal of Prosthodontics, EarlyView.
Abstract Purpose This study evaluated film thickness, diametral tensile strength (DTS), and crown retentive strength of hydraulic fast‐set calcium silicate cement (fast‐set CSC) compared to conventional luting cements. Materials and Methods Fast‐set CSC was compared to zinc phosphate cement and glass ionomer cement.
Atefeh Nemati Karimooy, Bahram Ranjkesh, Dirk Leonhardt, Henrik Løvschall   +3 more
wiley   +1 more source

A new Anthropocene aesthetics: Mediating Harman, Morton, and Boysen

Orbis Litterarum, EarlyView.
Abstract Practitioners of Object‐Oriented Ontology (OOO) have critiqued the metaphysical assumptions of contemporary poetry, and particularly the position of the lyric speaker. Scholars such as Graham Harman and Timothy Morton have positioned themselves as critics of these lyric sensibilities. In recent years, concerns have risen around their critiques
Chase Cate
wiley   +1 more source

Relación entre los mecanismos de difusión atómica y las propiedades ópticas en la sinterización por Spark Plasma Sintering (SPS) de la alúmina.

Boletín de la Sociedad Española de Cerámica y Vidrio, 2009
The control of the sintering parameters during spark plasma sintering (SPS) of polycrystalline alumina allows modifying the contribution due to the different atomic diffusion mechanisms.
Torrecillas, R., Fernández, A., Menéndez, J. L., Suárez, M.   +3 more
doaj  

Thickness-dependent piezoelectric behaviour and dielectric properties of lanthanum modified BiFeO3 thin films [PDF]

Processing and Application of Ceramics, 2011
Bi0.85La0.15FeO3 (BLFO) thin films were deposited on Pt(111)/Ti/SiO2 /Si substrates by the soft chemical method. Films with thicknesses ranging from 140 to 280 nm were grown on platinum coated silicon substrates at 500°C for 2 hours.
Glenda Biasotto, Francisco Moura, Cesar Foschini, Elson Longo, Jose A. Varela, Alexandre Z. Simões   +5 more
doaj  

Crucial effect of SiC particles on in situ synthesized mullite whisker reinforced Al2O3-SiC composite during microwave sintering

Processing and Application of Ceramics, 2017
Mullite whisker reinforced Al2O3-SiC composites were in situ synthesized by microwave sintering at 1500°C for 30min. The influence of SiC particle size on heating process and properties of Al2O3-SiC composite were investigated. The XRD and SEM techniques
Meng Wei, Rui Zhang, Keke Guan, Bingbing Fan, Weimin Long, Jia Ma, Hongsong Zhang   +6 more
doaj   +1 more source

Physical and chemical characterization of recycled glass sand for environmental restoration

Restoration Ecology, EarlyView.
Abstract Introduction We rely on coastal resources for food, water, and energy. However, over 75% of U.S. coastlines are eroding. Concurrently, the U.S. recycles less glass than other developed countries, landfilling hundreds of millions of tons every year.
Shehbaz Ahmad, Julie P. Vanegas, Nicholas Borne, Natalia Butler, Toby Mendels, Leah A. Michaeloff, Diego Molina, Mary Salvaggio, Samantha Tamayo, Franziska Trautmann, Nicholas Walton, Julie N. L. Albert   +11 more
wiley   +1 more source