New Chromium-Calcium Titanate Red Ceramic Pigment

synthesis and characterization of a new chromium- calcium titanate red ceramic pigment is described in this communication. The pigment is based on the solid solution of chromium (IV) in calcium titanate and was characterized as red-brown pigment in a CaO-ZnO-SiO2 transparent glaze used for ceramic tiles (1080°C). XRD, UV-Vis-NIR spectroscopy and CIE-L*a*b* techniques of characterization have been employed. The L*a*b* valour of the optimal pigment with 0,015 mol/mol of chromium fired at 1100°C with a soaking time of 3 hours and 5% weight added to the transparent glaze is 59.3/12.5/9.5. Likewise 5%w. addition of NHCl used as flux agent increase b* and decrease L* valour (L*a*b*=45.2/15.3/5.3).

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Synthesis and characterization of β type solid solution in the binary system of Bi2O3-Eu2O3

Bulletin of Materials Science ◽

10.1007/bf02707889 ◽

2002 ◽

Vol 25 (7) ◽

pp. 583-588 ◽

Cited By ~ 21

Author(s):

O. Turkoglu ◽

M. Soylak ◽

I. Belenli

Keyword(s):

Solid Solution ◽

Binary System ◽

Synthesis And Characterization

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Synthesis and characterization of cobalt doped green ceramic pigment from tannery sludge

Ceramics International ◽

10.1016/j.ceramint.2015.06.101 ◽

2015 ◽

Vol 41 (10) ◽

pp. 12693-12699 ◽

Cited By ~ 15

Author(s):

Zhongfu Li ◽

Yi Du ◽

Zhongtao Chen ◽

Dandan Sun ◽

Chaofeng Zhu

Keyword(s):

Ceramic Pigment ◽

Synthesis And Characterization ◽

Tannery Sludge

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Synthesis and characterization of mixed fluorides with PbF2 and ScF3

Powder Diffraction ◽

10.1154/1.1948391 ◽

2005 ◽

Vol 20 (3) ◽

pp. 254-258 ◽

Cited By ~ 1

Author(s):

S. N. Achary ◽

A. K. Tyagi

Keyword(s):

Solid Solution ◽

Phase Equilibria ◽

Room Temperature ◽

Unit Cell Volume ◽

Solubility Limit ◽

Synthesis And Characterization ◽

Temperature Phase ◽

Fluorite Type ◽

Low Temperature Phase

A series of mixed fluoride compositions with PbF2 and ScF3 were prepared by heating the intimate mixtures of component fluorides at 600 °C for 10 h followed by slowly cooling to room temperature. The products obtained were analyzed by powder XRD to reveal the phases present in them and hence the low-temperature phase equilibria in the PbF2-ScF3 system. The phase equilibria show the fluorite-type solid solution up to the composition of about 15 mol% of ScF3 in the PbF2 lattice. The unit cell volume decreases with increasing ScF3 contents in the fluorite-type solid solutions. Beyond the solubility limit, the biphasic mixture of the cubic fluorite-type solid solution and leftover ScF3 is found to exist.

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Synthesis and characterization of barium niobate and silver niobate solid solution

10.1063/5.0001743 ◽

2020 ◽

Author(s):

Isha S. Kapte ◽

Sucharit Niyogi ◽

Parvez J. Qureshi ◽

C. Pavithra ◽

W. Madhuri ◽

...

Keyword(s):

Solid Solution ◽

Synthesis And Characterization

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Synthesis and characterization of nanocrystalline AlFeTiCrZnCu high entropy solid solution by mechanical alloying

Journal of Alloys and Compounds ◽

10.1016/j.jallcom.2007.05.104 ◽

2008 ◽

Vol 460 (1-2) ◽

pp. 253-257 ◽

Cited By ~ 173

Author(s):

S. Varalakshmi ◽

M. Kamaraj ◽

B.S. Murty

Keyword(s):

Solid Solution ◽

Mechanical Alloying ◽

Synthesis And Characterization ◽

High Entropy

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Synthesis and Characterization of BaTiO3-(Bi0.5Na0.5)TiO3 Solid Solution Based Dielectric Ceramics

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.512-515.1160 ◽

2012 ◽

Vol 512-515 ◽

pp. 1160-1164

Author(s):

Guo Feng Yao ◽

Xiao Hui Wang ◽

Long Tu Li

Keyword(s):

Solid Solution ◽

Dielectric Properties ◽

Solid State ◽

Curie Temperature ◽

Solid Solutions ◽

Solid State Reaction ◽

Synthesis And Characterization ◽

Conventional Solid State Reaction ◽

Dielectric Ceramics

BaTiO3-(Bi0.5Na0.5)TiO3 (BTBNT) solid solution ceramics with the Curie temperature higher than 150°C were prepared, which were promising for X9R MLCCs application. (Bi0.5Na0.5)TiO3 (BNT) was first synthesized by the conventional solid state reaction and then it was mixed with BaTiO3 (BT) with increasing BNT content from 0 to 12 mol%. BaTiO3-(Bi0.5Na0.5TiO3 solid solutions were obtained after calcining at 1100°C. The structural and dielectric properties of BTBNT and Nb-doped BTBNT ceramics were investigated.

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Synthesis and Characterization of Nano-Calcium Titanate-Based Coated Aluminum Oxide and its Application in Water Analysis of Cr(III) and Cr(VI) Concentration

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.44-47.2136 ◽

2010 ◽

Vol 44-47 ◽

pp. 2136-2139

Author(s):

Dong Zhang

Keyword(s):

Aluminum Oxide ◽

Sol Gel ◽

Calcium Titanate ◽

Synthesis And Characterization ◽

X Ray Diffraction ◽

Composite Adsorbent ◽

X Ray ◽

Ph Values ◽

Adsorption Capability

Nano-calcium titanate-based coated aluminum oxide (ACCTO) was successfully prepared by the citrate acid sol-gel method and characterized using X-ray diffraction (XRD) and scanning electron microscopy (SEM). Its application in speciation of Cr(III) and Cr(VI) from water was studied. The conditions of adsorption and elution were investigated. The results show that nanometer calcium titanate could be immobilized on the aluminum oxide firmly, becoming a composite adsorbent. Two forms of chromium showed different adsorption capability at different pH values, Cr (III) selectively retained at pH 8-14, whereas Cr (VI) retained at pH≤2. So separation of the Cr(III) and Cr(VI) is possible. Retained species were eluted with 5mL of 1 mol•L-1 HCl and NaOH. The Cr(III) and Cr(VI) concentration was measured by atomic absorption spectroscopy. The adsorption agent has a promising prospect in removal or enriching and separation of Cr(III) and Cr(VI) in water.

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