Simulation of the neck growth of non-isometric biosphere during initial sintering

Du, Ji-Xiang; Wang, Xianhui; Fan, Zhi Kang

doi:10.1016/s1006-7191(08)60098-8

Cited by 7 publications

(5 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As in the remaining pigments, isomorphic replacement of the zinc cation by a magnesium cation had occurred in this ferrite layer and so their precise ratio could not be The corrosion loss data (X corp ) characterize the pigment's ability to affect the resistance of the metal to corrosion in the pigment extract, where ions passivating the metal surface are present to a larger or lesser extent. The data demonstrate that the corrosion phenomena are partly inhibited by the presence of the pigments [18]. Low steel losses by corrosion were observed with the core-shell pigments D (mixed Mg-Zn-Fe oxide/kaolin), and E (mixed Mg-Zn-Fe oxide/ talc) and with the lamellar ferrite C (lamellar Mg 0.2 Zn 0.8 Fe 2 O 4 ), viz.…”

Section: Pigment Morphology and Structurementioning

confidence: 75%

See 1 more Smart Citation

Anti‐Corrosive Properties and Physical Resistance of Alkyd Resin–Based Coatings Containing Mg‐Zn‐Fe Spinels

Nechvílová¹,

Kalendová²,

Kohl³

2017

Magnetic Spinels - Synthesis, Properties and Applications

View full text Add to dashboard Cite

The anti-corrosive and physical properties of organic coatings containing spinel pigments Mg 0.2 Zn 0.8 Fe 2 O 4 wer studied. Pigments exhibiting different particle morphologies were synthesized by high-temperature solid phase reactions. Core-shell pigments containing Fe-Mg-Zn ferrite shells deposited on non-isometric particles of mineral cores consisting of layered silicates were also prepared. The pigments were used in paints, the pigment volume concentrations in the binder being 5, 10 and 15%. Anti-corrosive efficiency was investigated for paint films containing one of three ferro-spinel (Mg 0.2 Zn 0.8 Fe 2 O 4)-based pigments or one of two core-shell pigments consisting of Fe-Mg-Zn shell and lamellar silicate-based cores. The paint properties were examined by accelerated corrosion tests and by physico-mechanical tests. The relationships between the pigment particle shape and the paint properties were examined. The effect of the pigment particle morphology on the mechanical properties of the paint films was also investigated. The dependence of the paint film properties on the pigment volume concentration was studied and the optimum concentrations providing the most efficient anti-corrosive protection were determined for each pigment.

show abstract

Section: Pigment Morphology and Structurementioning

confidence: 75%

“…The protective properties of organic coatings are dependent, among other factors, on their impermeability to liquids and gases [14][15][16]. Protective film impermeability to liquids and gases can be improved by using non-isometric fillers [17,18], e.g. micaceous iron oxide (specularite) [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Anti‐Corrosive Properties and Physical Resistance of Alkyd Resin–Based Coatings Containing Mg‐Zn‐Fe Spinels

Nechvílová¹,

Kalendová²,

Kohl³

2017

Magnetic Spinels - Synthesis, Properties and Applications

View full text Add to dashboard Cite

show abstract

“…When the grains grow up, the grain boundaries move across the pores, and many pores disappear in the places swept by the grain boundaries so that the density has been significantly improved. [36] In most cases, the change in sintered porosity is measured by the change in open porosity. With the gradual increase of the degree of sintering, some of these pores are filled, and the other part is transformed into isolated or closed pores.…”

Section: Figure 12 Schematic Diagram Of Edge Resin Layer Modelmentioning

confidence: 99%

The Effect of Particle Distribution to the Sintering Properties of Al2o3 Ceramic Formed by Stereolithography

Qian¹,

Hu²,

Wang³

et al. 2021

Preprint

View full text Add to dashboard Cite

This work studied the effect of particle size gradation on the structure and sintering properties of alumina ceramics manufactured by stereolithography after sintering, including room temperature flexural strength, sintering shrinkage, porosity and microstructure morphology. Seven different particle size gradations from coarse to fine were studied, and each particle size gradation was coarse particles: fine particles=6:4. With the increase of the sintering temperature, the degree of sintering and the bonding strength of the interface increased, the shrinkage in all directions, and the bending strength and the closed porosity increased, the open porosity decreased. For the same sintering temperature, the flexural strength and shrinkage in all directions decreased and the open porosity increased with the increase of particle size. The ratio of the height (4mm) shrinkage of each particle size to the length (50mm) shrinkage is about 1.5 times. Due to the presence of the lateral edge resin layer, the width shrinkage of the coarse particles was different from the length shrinkage but closer to the height shrinkage. The width shrinkage gradually approached the length shrinkage as the particle size decreased. When the gradation ratio is the same, and the particle size was ten times different (30μm/5μm, 3μm/0.5μm; 20μm/3μm, 2μm/0.3μm), there was a big difference. When the sintering temperature was above 1500℃, the differences of sintering properties of the comparison groups are 2~10 times. Considering the alumina-based ceramic core, 20/3 has been evaluated comprehensively. It maintains excellent flexural strength and porosity under the condition of slight shrinkage.

show abstract

“…This is because Li 2 CO 3 can act as flux which is able to decrease the temperature of solid-state reaction and improve the crystalline property [12]. Both the grain-boundary diffusion and volume diffusion play primary roles in neck growth, while surface diffusion gradually becomes the secondary mechanism [13]. The addition of Li + ions at y≦0.05 results in the formation of spherical shape and uniform particles.…”

Section: Morphologymentioning

confidence: 99%

Charge Compensation and Enhanced Photoluminescence of Sr2SiO4:Eu3+, Li+ Phosphor

Chen

Chang

Weng

et al. 2011

AMR

View full text Add to dashboard Cite

A Eu3+activated strontium silicate phosphor was synthesized by solid-state reaction and Li+ion was added to balance the charge valence. X-ray powder diffraction analysis confirmed the formation of pure Sr2SiO4phase without second phase or phases of starting materials irrespective of the adding amount of Li+. Scanning electron microscopy showed large particle size and necking shape were obtained as the concentrations of Li+ions increase. In the PL studies, the excitation spectrum of Sr2SiO4:Eu3+,Li+phosphors exhibited a broad band in the UV region centered at about 270 nm attributed to charge transfer state (CTS) band. As the Li+ion concentration increased, the photoluminescence intensity of the red emission at 617 nm of Eu3+ions was enhanced. The results showed that Li+ion is a effective charge compensators used in Sr2SiO4:Eu3+phosphor.

show abstract

Simulation of the neck growth of non-isometric biosphere during initial sintering

Cited by 7 publications

References 11 publications

Anti‐Corrosive Properties and Physical Resistance of Alkyd Resin–Based Coatings Containing Mg‐Zn‐Fe Spinels

Anti‐Corrosive Properties and Physical Resistance of Alkyd Resin–Based Coatings Containing Mg‐Zn‐Fe Spinels

The Effect of Particle Distribution to the Sintering Properties of Al2o3 Ceramic Formed by Stereolithography

Charge Compensation and Enhanced Photoluminescence of Sr<sub>2</sub>SiO<sub>4</sub>:Eu<sup>3+</sup>, Li<sup>+</sup> Phosphor

Contact Info

Product

Resources

About