Hydration Resistance of CaO Material Prepared by Ca(OH)2 Calcination with Chelating Compound

Wang, Jinhu; Wei, Yaowu; Li, Nan; Chen, Junfeng

doi:10.3390/ma12142325

Cited by 15 publications

(7 citation statements)

References 24 publications

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“…Although the hydration resistance of CaO granules in this study was not satisfied when compared with those prepared from calcium hydroxide [12][13][14][15],this study suggested the introduction of Al(OH) 3 and La 2 O 3 improved the properties of CaO granulesthat prepared by one-step calcination technology. Compared with previous experiments by Ghosh [19], the average grain size of CaO in this study was increased and the weight gain in the humidity chamber was decreased significantly.…”

Section: Discussioncontrasting

confidence: 58%

“…However, lime can easily react with moisture in the air, and that damage to lime-based refractories. A lot of works has been done to prepare densified lime-based refractories by adding admixtures [8][9][10][11][12], granulation [13,14]and surface treatment [15]. For example, secondary calculations at high temperatures [16]to enhance the hydration resistance of lime-based refractories.Different additivescan promote the sintering process of lime and theeffect of additives on the sintering process of lime can be divided into two mechanisms [17].…”

Section: Introductionmentioning

confidence: 99%

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Effect of Al(OH)3 and La2O3 on the sintering behavior of CaO granules via CaCo3 decomposition

Wei

et al. 2020

SCI SINTER

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Hydration resistance of CaO aggregates is the key to the successful application of lime-based refractories. Granulation technology on limestone with additives and one step calcination method was used in this study to investigate the effects of Al(OH)3 and La2O3 on the sintering behavior and the hydration resistance of CaO granules. The result showed that the hydration resistance of CaO granules was improved significantly by adding Al(OH)3 and La2O3. The shell of sintered CaO granules was relatively dense after calcination and the specific surface area of CaO granules decreased from 7.5?10-2 m2/g to 1.2?10-2 m2/g. The average pore size of CaO granular was decreased from 3.54 ?m to 0.83 ?m due to the liquid phase sintering when Al(OH)3 additive was used. La2O3 promoted the densification of CaO compact by the ion substitution and solution with CaO. La3+ approached into CaO lattices, which enlarged the vacancy concentration of Ca2+ and accelerated the diffusion of Ca2+.

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Section: Discussioncontrasting

confidence: 58%

Section: Introductionmentioning

confidence: 99%

Effect of Al(OH)3 and La2O3 on the sintering behavior of CaO granules via CaCo3 decomposition

Wei

et al. 2020

SCI SINTER

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“…According to the figures, there is at least 60% (calculated by the ratio of peak areas) remaining of the P–O group on Ti substrate surface after 12 days cultivation. These demonstrate the effective coating of bioactive components and lasting on substrate surface during the in vitro culture [ 39 ].…”

Section: Resultsmentioning

confidence: 99%

Surface decoration of development-inspired synthetic N-cadherin motif via Ac-BP promotes osseointegration of metal implants

Zhu

Zhang

et al. 2021

Bioactive Materials

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Research works on the synergistic effect of surface modified bioactive molecules and bone metal implants have been highlighted. N-cadherin is regarded as a key factor in directing cell–cell interactions during the mesenchymal condensation preceding the osteogenesis in the musculoskeletal system. In this study, the N-cadherin mimetic peptide (Cad) was biofunctionalized on the titanium metal surface via the acryloyl bisphosphonate (Ac-BP). To learn the synergistic effect of N-cadherin mimetic peptide, when tethered with titanium substrates, on promoting osteogenic differentiation of the seeded human mesenchymal stem cells (hMSCs) and the osseointegration at the bone-implant interfaces. Results show that the conjugation of N-cadherin mimetic peptide with Ac-BP promoted the osteogenic gene markers expression in the hMSCs. The biofunctionalized biomaterial surfaces promote the expression of the Wnt/β-catenin downstream axis in the attached hMSCs, and then enhance the in-situ bone formation and osseointegration at the bone-implant interfaces. We conclude that this N-cadherin mimetic peptide tethered on Ti surface promote osteogenic differentiation of hMSCs and osseointegration of biomaterial implants in vitro and in vivo . These findings demonstrate the importance of the development-inspired surface bioactivation of metal implants and shed light on the possible cellular mechanisms of the enhanced osseointegration.

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“…Many studies have been done on the surface carbonation of CaO‐containing refractories to reduce their hydration during the service process by Chen et al 21 and Song 22 . CaO materials with excellent hydration resistance by surface treatment were prepared by Wang et al 23,24 …”

Section: Introductionmentioning

confidence: 99%

Improved hydration resistance of CaO granules via sol‐processed metal oxide protective layers

Wei

Jin-hu

et al. 2021

J Am Ceram Soc

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Well‐sintered CaO granules with hydration resistance are very important for the manufacturing and application of CaO‐containing refractories. CaO granules with sol‐processed metal oxide protective layers were prepared by granulation and surface treatment. The obtained results indicated that the usage of nano sol greatly improved the hydration resistance of CaO granules, especially when the CaO granules were treated by alumina sol. The promoting effect of nano sols in the sintering processes improved the density of CaO granules. Nanoparticles reacted with lime at lower temperature and a new phase was formed uniformly in the treated layer, which promoted densification of the treated layer. The grain size of CaO granules in the treated layer was increased obviously with the promotion of sintering. Moreover, nanoparticles were favorable for the formation of direct bonding between CaO grains by decreasing the dihedral angle.

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Hydration Resistance of CaO Material Prepared by Ca(OH)2 Calcination with Chelating Compound

Cited by 15 publications

References 24 publications

Effect of Al(OH)3 and La2O3 on the sintering behavior of CaO granules via CaCo3 decomposition

Effect of Al(OH)3 and La2O3 on the sintering behavior of CaO granules via CaCo3 decomposition

Surface decoration of development-inspired synthetic N-cadherin motif via Ac-BP promotes osseointegration of metal implants

Improved hydration resistance of CaO granules via sol‐processed metal oxide protective layers

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