Effect of Sr2+ doping on sintering behavior, microstructural development and electrical properties of LaPO4·nH2O nanorods prepared by dry mechanical milling

Colomer, M.T.

doi:10.1016/j.ijhydene.2018.05.069

Cited by 5 publications

(4 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…for x = 0.05, the densification took place at a lower temperature than for the NdPO 4 •nH 2 O end-member (about 1000°C for x = 0.05 and 1070°C for x = 0.00). According to the previous reports on the sintering of Sr-doped LaPO 4 •nH 2 O rhabdophane[40], the incorporation of a divalent ion in the structure could create oxygen vacancies which could accelerate the densification for Nd 0.09 Ca 0.05 Th 0.05 PO 4 . Nevertheless, the temperature related to the end of the densification process was almost the same for these two samples, i.e.…”

mentioning

confidence: 99%

Reaction sintering of rhabdophane into monazite-cheralite Nd1-2xThxCaxPO4 (x = 0 – 0.1) ceramics

Qin

Mesbah

Lautru

et al. 2020

Journal of the European Ceramic Society

View full text Add to dashboard Cite

This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

show abstract

mentioning

confidence: 99%

Reaction sintering of rhabdophane into monazite-cheralite Nd1-2xThxCaxPO4 (x = 0 – 0.1) ceramics

Qin

Mesbah

Lautru

et al. 2020

Journal of the European Ceramic Society

View full text Add to dashboard Cite

show abstract

“…In the present study, the La 2 P 4 O 13 phase has not detected in any HA/1M/xL sample since it forms above 1300 °C. LaP 3 O 9 has the base-centred orthorhombic structure [58]. The presence of LaP 3 O 9 increases the electrical conductivity of glass-ceramics and accelerates the healing of damaged tissues [59].…”

Section: Resultsmentioning

confidence: 99%

The effect of lanthanum addition on the microstructure and mechanical properties of Mg-modified hydroxyapatite ceramics

Pazarlıoğlu

Algan

Isikogullari

et al. 2021

PAC

View full text Add to dashboard Cite

In the present paper, the effect of La2O3 (0.25, 0.5 and 1 wt.%) addition on the phase stability, porosity, density, hardness, fracture toughness, compressive strength and brittleness index of hydroxyapatite modified with 1 wt.% of MgO was investigated. Hydroxyapatite (HA) without additives sintered at 1300?C has mixture of dominant hydroxyapatite phase with beta-tricalcium phosphate (?-TCP), alpha-tricalcium phosphate (?-TCP) and calcium oxide (CaO) phases. The microstructure is characterized with transgranular microcracks and oversized grains. Although the density and hardness of the pure HA increased with increasing temperature, a steady decrease in fracture toughness (from 0.96 to 0.71MPa?m1/2) and compressive strength (from 130.2 to 65.6MPa) was observed. For the HA modified with 1 wt.% of MgO the highest compressive strength (183.2MPa) and fracture toughness (1.47MPa?m1/2) were obtained at 1200?C and at this temperature the brittleness index was 3.24 ?m-1/2. Increase in the sintering temperature led to the increase of the brittleness index of the pure HA,MgO modified HA and La2O3-MgO modified HA samples. The addition of 1 wt.%La2O3 to 1 wt.% MgO-HA contributed to the increase in the compressive strength of about 10%(from 183.2 to 202.0MPa), fracture toughness of about 69% (from 1.37 to 2.32MPa?m1/2) and also decrease of the brittleness index from 3.24 to 2.18 ?m-1/2. The best performance after sintering at 1300?C was obtained for the MgO-HA sample with 0.25wt.% La2O3. As a result of this study, a new candidate material for biomedical application with superior mechanical properties and the phases that do not cause adverse reactions in the human body could be 1 wt.% MgO-HA modified with 1 wt.% La2O3 and sintered at 1200?C.

show abstract

“…Functional materials are obtained on the basis of individual RE orthophosphates, solid solutions, including nanocrystalline ones [26][27][28][29][30][31][32][33][34][35]. RE orthophosphate nanoparticles are of scientific interest to researchers, both from the fundamental and from practical points of view.…”

Section: Introductionmentioning

confidence: 99%

The influence of condition of the monazite structured La0.9Y0.1PO4 nanocrystals sintering on thermal and mechanical properties of the material

Enikeeva¹,

Проскурина²,

Motaylo³

et al. 2021

Nanosystems: Phys. Chem. Math.

View full text Add to dashboard Cite

A lanthanum orthophosphate-and yttrium-based monazite structured La 0.9 Y 0.1 PO 4 nanocrystalline material was synthesized. The influence of the thermal treatment temperature on its thermal and mechanical properties has been determined. It was shown that the hydrothermal treatment of coprecipitated phosphates at 230 • C for 110 minutes yielded monazite structured nanoparticles with the crystallite size of about 16 nm. Nanopowder thermal treatment for 20 min in the annealing-quenching mode at 1000-1400 • C resulted in obtaining compact materials, the porosity of which varied from 52 to 27% with the grain growth from ∼20 to ∼100 nm. Active sintering occurred at temperatures above 1300 • C. Nanocrystalline materials obtained by heat treatment at 1200 • C with a grain size of ∼40 nm have a porosity of 42%, microhardness of Hv(25 • C) = 4±0.5 GPa, thermal conductivity λ(25 • C) = 0.4 W•m −1 •K −1 , and can be used as thermal insulation material.

show abstract

Effect of Sr2+ doping on sintering behavior, microstructural development and electrical properties of LaPO4·nH2O nanorods prepared by dry mechanical milling

Cited by 5 publications

References 42 publications

Reaction sintering of rhabdophane into monazite-cheralite Nd1-2xThxCaxPO4 (x = 0 – 0.1) ceramics

Reaction sintering of rhabdophane into monazite-cheralite Nd1-2xThxCaxPO4 (x = 0 – 0.1) ceramics

The effect of lanthanum addition on the microstructure and mechanical properties of Mg-modified hydroxyapatite ceramics

The influence of condition of the monazite structured La0.9Y0.1PO4 nanocrystals sintering on thermal and mechanical properties of the material

Contact Info

Product

Resources

About