Structural characterization of bulk ZrTiO4 and its potential for thermal shock applications

López-López, E.; Baudı́n, Carmen; Moreno, Rodrigo; Santacruz, Isabel; León‐Reina, Laura; Aranda, Miguel A. G.

doi:10.1016/j.jeurceramsoc.2011.08.004

Cited by 42 publications

(34 citation statements)

References 40 publications

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“…They show that it is possible to obtain ZrTiO 4 materials at lower temperature than that used during normal solid-state reaction sintering [7,28]. Reflections at 2θ ∼ 28º and 31º show the presence of residual m-ZrO 2 , whereas it is not possible to observe characteristic peaks of TiO 2 .…”

Section: Resultsmentioning

confidence: 99%

ZrTiO4 materials obtained by spark plasma reaction-sintering

Borrell¹,

Salvador²,

Rocha³

et al. 2014

Composites Part B: Engineering

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Zirconium titanate (ZrTiO 4 ), have many attractive properties such as high resistivity, high dielectric constant, high permittivity at microwave frequencies and excellent temperature stability for microwave properties. Zirconium titanate dense materials are proposed for many structural applications, but fully reacted and completely dense pieces are difficult to obtain by conventional routes. In this work, fully dense zirconium 2 titanate materials (∼ 98%) were obtained at lower temperatures (1300-1400 ºC) and short processing time by non-conventional technique; spark plasma-reaction sintering (SPRS). Homogeneous and stable starting powders mixture with the adequate composition was prepared from the raw materials: m-ZrO 2 (∼ 0.3μ m) and anatase-TiO 2 (∼ 40nm). Dense materials were mechanically and microstructural characterized. The fracture strength was measured by biaxial testing, giving values of about 200 MPa.

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Section: Resultsmentioning

confidence: 99%

ZrTiO4 materials obtained by spark plasma reaction-sintering

Borrell¹,

Salvador²,

Rocha³

et al. 2014

Composites Part B: Engineering

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“…These methods have been used to make powders or small pieces of ZrTiO4. However, a structural application requires bulk materials, so it is necessary to combine synthesis and processing methods which allow the preparation of zirconium titanate 3D-shaped materials [12]. It is supposed that a phase transition in this case is caused by the solid state reactions taking place during the milling process, but it does not depend on the molarity of the added hydrochloric acid.…”

Section: Resultsmentioning

confidence: 99%

Synthesis of Nanoporous SiO2-TiO2-ZrO2 Ceramics Using Sol-gel Technology

Karpe

Mežinskis

Timma

2014

Material Science and Applied Chemistry

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-The aim of research is to develop an area of nanoporous ceramics of ternary systems. Nanoporous ceramic system SiO2-TiO2-ZrO2 has been synthesized via sol-gel technology by hydrolysis of tetraethylorthosilicate (TEOS), zirconia and titanium alcoxides solutions. The sols have been polymerized at room temperature to obtain gels and dried at 100 o C, then milled for 1 or 6 hours for particle homogenization, pressed into samples, and then sintered at 800 o C or 1000 o C in air. The samples have been characterized by XRD, particle size distribution, crystallite size distribution, compressive strength. Porosity of ceramic samples has been determined by nitrogen adsorption-desorption isotherms.

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“…where -apparent density, g/cm 3 ; -mass of dry ceramic sample, g; 1 -mass of watered ceramic sample into air, g; 2 -mass of watered ceramic sample into water, g; 2 -water density, g/cm 3 . The specific surface areas of all ceramic samples were determined by Brunauer, Emmett and Teller (BET) nitrogen adsorption-desorption isotherms and were recorded by using "Nova 1200 E-Series, Quantachrome Instruments" (for pore size of 0.35 nm -200 nm).…”

Section: Methodsmentioning

confidence: 99%

“…ZrTiO4 is a well-known compound in the field of electroceramics, where it has been used in dielectric resonators and materials for telecommunications [3], in dielectric resonators for microwave telecommunications [4], but in most cases as a dense ceramic material. Nanoporous materials are of the groups of nanomaterials.…”

Section: Introductionmentioning

confidence: 99%

“…No iegūtajiem rezultātiem redzams, ka malšanas procesa laikā notikusi fāžu pāreja (no ZrO2 uz TiZrO2 vai Ti2ZrO6) visām trim paraugu sērijām. Iegūtā keramikas materiāla šķietamais blīvums ir no 1,8 g/cm 3 līdz 2,3 g/cm 3 , bet spiedes stiprība ir robežās no 38 MPa līdz 68 MPa, atkarība no komponentu attiecības, pulvera malšanas ilguma un saķepināšanas temperatūras.…”

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Synthesis of Micro- and Mesoporous SiO2 Based Ceramic Materials (Using Sol-gel Technology)

Karpe

Mežinskis

2014

Material Science and Applied Chemistry

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-The aim of research is to develop an area of microand mesoporous ceramic materials of ternary -TiO2-ZrO2-SiO2 system. Ceramic system TiO2-ZrO2-SiO2 has been synthesized via a sol-gel technology by hydrolysis of tetraethylorthosilicate (TEOS) and zirconia propoxide and titanium isporopoxide solutions. The sols have been polymerized at room temperature to obtain gels and dried at 100 °C for 72 hours. Xerogel has been milled for 1 or 6 hours and axially pressed for nanoporous ceramic samples. Powders have been sintered at 800 °C or 1000 °C in air. 1 M hydrochloric acid and distilled water have been used as a catalyst to advance the hydrolysis and condensation reactions. All samples have been characterized by X-ray (XRD) diffraction, particle size distribution, crystallite size distribution, compressive strength. Porosity and specific surface area of nanoporous ceramic samples have been determined by Brunauer, Emmett and Teller (BET) nitrogen adsorption-desorption isotherms.

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Structural characterization of bulk ZrTiO4 and its potential for thermal shock applications

Cited by 42 publications

References 40 publications

ZrTiO4 materials obtained by spark plasma reaction-sintering

ZrTiO4 materials obtained by spark plasma reaction-sintering

Synthesis of Nanoporous SiO2-TiO2-ZrO2 Ceramics Using Sol-gel Technology

Synthesis of Micro- and Mesoporous SiO2 Based Ceramic Materials (Using Sol-gel Technology)

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