Effect of Y2O3 on the physical properties and biocompatibility of β–SiAlON ceramics

Li, Miao; Zhang, Liguo; Zhang, Can; Xu, Enxia; Liu, Xinhong; Fang, Zhao; Sun, Xu; Chen, Huiping; Jin, Gao

doi:10.1016/j.ceramint.2020.06.112

Cited by 16 publications

(8 citation statements)

References 23 publications

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“…A comparison of our products with others prepared via pressureless sintering revealed that the samples prepared in this experiment have an excellent compression resistance performance. 22,24,29 On the one hand, from the perspective of the bulk density and apparent porosity, for SLN 1-4, the bulk density increased and the porosity decreased, indicating that the material was sintered more densely. On the other hand, combined with the SEM images, for SLN 1-4, the grains were more tightly combined.…”

Section: Apparent Porosity Bulk Density and Compressive Strengthmentioning

confidence: 99%

“…Previous studies have shown that as a bioceramic, β-SiAlON is not only easy to sinter but also has good physical and excellent biological properties. [22][23][24] Therefore, the preparation of β-SiAlON-Si 3 N 4 (SLN) composites via the in situ synthesis of β-SiAlON can benefit from the easy preparation of β-SiAlON and be combined with β-Si 3 N 4 while retaining the excellent biological properties of β-Si 3 N 4 . This process is also expected to reduce the difficulty in preparing the composite, thereby yielding a new type of SLN composite biological material.…”

Section: Introductionmentioning

confidence: 99%

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Improved sintering performance of β-SiAlON–Si₃N₄ and its osteogenic differentiation ability by adding β-SiAlON

Zhang

et al. 2022

J Biomater Appl

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To improve the sintering performance of silicon nitride bioceramics, we explored the effect of β-SiAlON’s Z-value on the physical, chemical, and biological properties of β-SiAlON–Si3N4 composites. Results showed that the phase product was β-Si3N4. As the Z-value increased, the X-ray diffraction peaks gradually shifted to a smaller angle, the material grains were more tightly packed, and the bulk density and compressive strength increased, reaching the highest values (2.71 g/cm3 and 1157 MPa, respectively) at Z = 4. Soaking and ion-release experiments show that in an aqueous environment, a small amount of Al and Si ions were released, and no obvious decomposition occurred on the surface of the material. The biological performance showed that the growth of cultured cells in each group was in good condition, there was no obvious difference in morphology and adhesion, and the materials had good biological performance. An increase in the Z-value promotes the formation of mineralized nodules and osteogenic differentiation of MC3T3-E1 cells, which may be because the release of Si can promote osteogenic differentiation. Therefore, the addition of β-SiAlON could improve the sintering performance of β-Si3N4 without degrading its biological properties. The prepared β-SiAlON–Si3N4 composite ceramic is a latent bioceramic material.

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Section: Apparent Porosity Bulk Density and Compressive Strengthmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Improved sintering performance of β-SiAlON–Si₃N₄ and its osteogenic differentiation ability by adding β-SiAlON

Zhang

et al. 2022

J Biomater Appl

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“…Such characteristics have made silicon nitride popular for the manufacturing of cutting tools and bearings, and interesting for the potential replacement of dense metal components in advanced combustion engines. Even more recently, silicon nitride and its related materials have exhibited promising biocompatibility 10–12 …”

Section: Introductionmentioning

confidence: 99%

“…Even more recently, silicon nitride and its related materials have exhibited promising biocompatibility. [10][11][12] However, as a liquid-phase sintered material, its hightemperature structural properties are limited by the residual glassy grain boundary phase that results from the incorporation of liquid-phase sintering additives. 13 This intergranular glassy phase softens at intermediate temperatures and causes creep via mechanisms of grain sliding and grain boundary cavitation.…”

Section: Introductionmentioning

confidence: 99%

Molecular‐level composition design for efficient synthesis of SiAlON ceramics

2022

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SiAlONs are a class of liquid‐phase sintered ceramics with excellent room‐temperature strength and toughness, but whose residual grain boundary glass softens at high temperatures, limiting use in extreme environments. For this reason, efforts are made to minimize the volume of the grain boundary glass while still facilitating full densification. This work describes a potential route for the densification of SiAlONs with very low concentrations of liquid‐phase sintering additive (e.g., rare‐earth oxides such as yttria) by using an organometallic precursor. Solid solution of Al and O in the Si3N4 lattice was accomplished through the incorporation of solute atoms via liquid organic precursor aluminum sec‐butoxide (ASB). Al2O3 powder is conventionally used for this purpose, and the subsequent lattice softening associated with the solid solution helps to facilitate densification. However, a liquid‐phase additive is still essential for the full densification of SiAlONs. Higher densities were obtained from SiAlON powder blends utilizing organometallic ASB than those utilizing alumina powder, allowing for greater densification at very low Y2O3 concentrations. The thermal decomposition of the organic precursor was investigated by high‐temperature scanning electron microscopy, thermogravimetric analysis, and various X‐ray diffraction experiments. Immersion density measurements and lattice parameter refinements were performed for samples sintered with varying Y2O3 concentrations and/or dwell times. Results indicate that ASB‐containing powder blends favor SiAlON formation more strongly than Al2O3‐containing powder blends and favor densification at very low Y2O3 concentration.

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“…10 However, Ca ions can dissolve into the lattice of SiAlON ceramics to form Caα-SiAlON, [13][14][15] indicating that SiAlON can be prepared as a Ca-containing composite material. Although some studies 16,17 have shown that β-SiAlON ceramics have good biocompatibility, further research should be conducted to determine whether the addition of Ca maintains the biocompatibility of the biomaterial. Therefore, in this study, a small amount of CaCO 3 was added during the preparation of β-SiAlON ceramics to study its effects on the physicochemical and biological properties of β-SiAlON.…”

Section: Introductionmentioning

confidence: 99%

The effect of CaO on the physicochemical and biological properties of β‐SiAlON ceramics

Jin

et al. 2021

J Am Ceram Soc.

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To investigate the effects of CaO on the physicochemical and biological properties of β-SiAlON, β-SiAlON ceramics containing CaO were prepared using the direct nitriding method. The results of X-ray powder diffraction and scanning electron microscopy demonstrated that β-SiAlON remained in the material phase because the addition of Ca did not result in the formation of Ca-α-SiAlON. However, CaO promoted the sintering of β-SiAlON grains and significantly decreased porosity and increased bulk density and compressive strength. According to a chemical stability study, when β-SiAlON ceramics powder was soaked in deionized water and a cell culture medium, it was noted to have negative electricity. A reaction occurred with the H + and OH − ions in the deionized water, leading to the formation of surface structures, such as Si-OH, Al-OH, and N-H. Moreover, the addition of CaO caused a different chemical reaction among ions or ion groups in the culture medium, and new chemical groups formed on the material surface that interacted with the culture medium, which resulted in an alteration of the zeta potential and surface chemical properties of β-SiAlON. MC3T3-E1 cells cultured on the surface of ceramics proved that the cells cannot adhere well to the surface of β-SiAlON ceramics with CaO, although they could proliferate well around those with only β-SiAlON. Therefore, the change in the surface chemical properties provides good anticell adhesion ability, which makes β-SiAlON with CaO a biocompatible material that can be used to prevent contamination caused by cell adhesion, with possible applications in biosensors or biomedical equipment that must be used in sterile environments.

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Effect of Y2O3 on the physical properties and biocompatibility of β–SiAlON ceramics

Cited by 16 publications

References 23 publications

Improved sintering performance of β-SiAlON–Si₃N₄ and its osteogenic differentiation ability by adding β-SiAlON

Improved sintering performance of β-SiAlON–Si₃N₄ and its osteogenic differentiation ability by adding β-SiAlON

Molecular‐level composition design for efficient synthesis of SiAlON ceramics

The effect of CaO on the physicochemical and biological properties of β‐SiAlON ceramics

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Effect of Y2O3 on the physical properties and biocompatibility of β–SiAlON ceramics

Cited by 16 publications

References 23 publications

Improved sintering performance of β-SiAlON–Si3N4 and its osteogenic differentiation ability by adding β-SiAlON

Improved sintering performance of β-SiAlON–Si3N4 and its osteogenic differentiation ability by adding β-SiAlON

Molecular‐level composition design for efficient synthesis of SiAlON ceramics

The effect of CaO on the physicochemical and biological properties of β‐SiAlON ceramics

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Product

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Improved sintering performance of β-SiAlON–Si₃N₄ and its osteogenic differentiation ability by adding β-SiAlON

Improved sintering performance of β-SiAlON–Si₃N₄ and its osteogenic differentiation ability by adding β-SiAlON