Rheological Behavior of Titanium Dioxide Suspensions

Yang, Hua Gui; Li, Chunzhong; Gu, Hui; Fang, Tunan

doi:10.1006/jcis.2000.7373

Cited by 114 publications

(56 citation statements)

References 22 publications

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“…This is indicative of flocculated suspensions that form three-dimensional arrangements with rigid mechanical structures that must deform and fracture as the glass frit content increases. [22] The conductive ink with 0.16 vol % glass frit added had a low viscosity, 5.38 mPa s at 100 s À1 , and exhibited behavior closer to Newtonian flow except at very low shear rates (<50 s À1 ). This behavior suggests that the level of flocculation is relatively low and that uniform droplet ejection at a high shear rate of approximately 10 5 s À1 would be possible.…”

Section: Full Papermentioning

confidence: 99%

Nanosized Glass Frit as an Adhesion Promoter for Ink‐Jet Printed Conductive Patterns on Glass Substrates Annealed at High Temperatures

Jang

Kim

Lee

et al. 2008

Adv Funct Materials

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Ink‐jet printed metal nanoparticle films have been shown to anneal at high temperatures (above 500 °C) to highly conductive metal films on glass or ceramic substrates, but they suffer from cracking and inadequate substrate adhesion. Here, we report printable conductive materials, with added nanosized glass frit that can be annealed at 500 °C to form a crack‐free dense microstructure that adheres well to glass substrates. This overcomes the previous challenges while still retaining the desired high film conductivity. Controlling the particle characteristics and dispersion behavior plays an important role in successfully incorporating the glass frit into the conductive inks.

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Section: Full Papermentioning

confidence: 99%

Nanosized Glass Frit as an Adhesion Promoter for Ink‐Jet Printed Conductive Patterns on Glass Substrates Annealed at High Temperatures

Jang

Kim

Lee

et al. 2008

Adv Funct Materials

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“…This behavior is typical of flocculated suspensions that form three-dimensional arrangements with a rigid mechanical structure that must deform and fracture before free flow of the slurry can occur. [49] The uncoated nanoparticle mixture behaves as a Newtonian suspension, which maintains a constant viscosity with respect to shear rate. This behavior suggests that the level of flocculation in this slurry is fairly low.…”

Section: Rheological Behaviormentioning

confidence: 99%

Nanoparticle Coating for Advanced Optical, Mechanical and Rheological Properties

Hakim

King

Zhou

et al. 2007

Adv Funct Materials

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Primary titania nanoparticles were coated with ultrathin alumina films using Atomic Layer Deposition (ALD). The deposited films were highly uniform and conformal with an average growth rate of 0.2 nm per coating cycle. The alumina films eliminated the surface photocatalytic activity of titania nanoparticles, while maintained their original extinction efficiency of ultraviolet light. Deposited films provided a physical barrier that effectively prevented the titania surface from oxidizing organic material whereas conserving its bulk optical properties. Parts fabricated from coated powders by pressureless sintering had a 13 % increase in surface hardness over parts similarly fabricated from uncoated particles. Owing to its homogeneous distribution, the secondary alumina phase suppressed excessive grain growth. Alumina films completely reacted during sintering to form aluminum titanate composites, as verified by XRD. Coated particles showed a pseudoplastic behavior at low shear rates due to modified colloidal forces. This behavior became similar to the Newtonian flow of uncoated nanoparticle slurries as the shear rate increased. Suspensions of coated particles also showed a decreased viscosity relative to the viscosity of uncoated particle suspensions.

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“…The fine particles such as TiO 2 [9][10][11] dispersed in a liquid can easily form flocs due to colloidal attractive forces.When the suspensions are flocculated to increase the floc diameter, the UV scattering or sun protection factor is decreased to a great extent and the appearance of skin becomes markedly white during application. In manufacturing process the selection of dispersion method is directly connected with the improvement of UV-protecting ability.…”

Section: Introductionmentioning

confidence: 99%

Improvement of Preparation Method of UV-protecting Suspensions by the Use of Rheological Techniques

Nasu¹,

Otsubo

2009

J. Soc. Rheol., Jpn

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Rheological Behavior of Titanium Dioxide Suspensions

Cited by 114 publications

References 22 publications

Nanosized Glass Frit as an Adhesion Promoter for Ink‐Jet Printed Conductive Patterns on Glass Substrates Annealed at High Temperatures

Nanosized Glass Frit as an Adhesion Promoter for Ink‐Jet Printed Conductive Patterns on Glass Substrates Annealed at High Temperatures

Nanoparticle Coating for Advanced Optical, Mechanical and Rheological Properties

Improvement of Preparation Method of UV-protecting Suspensions by the Use of Rheological Techniques

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