Effects of rheological properties on ice-templated porous hydroxyapatite ceramics

Zhang, Yan; Zhou, Kechao; Bao, Yinxiang; Zhang, Dou

doi:10.1016/j.msec.2012.08.048

Cited by 63 publications

(36 citation statements)

References 34 publications

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“…All samples prepared by the ice templating method exhibited porous structures with clear lamellar oriented channels of long range order, which was similar to our previous work of porous HA. 16 The lamellar pore width and ceramic wall thickness were directly observed using environmental scanning electron microscopy. The data represented mean and standard deviations of more than five random sites.…”

Section: Resultsmentioning

confidence: 99%

Control of pore structures and sizes in freeze cast ceramics

Zhang

Zhou

Zeng

et al. 2013

Advances in Applied Ceramics

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Freeze casting of aqueous ceramic suspension was investigated as a method for preparing porous ceramic with interconnected, aligned lamellar pores. The manipulation of the pore structures and sizes by adjusting the processing parameters was studied. Al 2 O 3 suspensions with different viscosities were prepared by controlling the solid loadings and particle sizes. Larger lamellar pore width and thinner lamellar ceramic wall without any defect were achieved by the utilisation of microsized Al 2 O 3 powder. Lamellar pore width, ceramic wall thickness and porosity can be tailored ranging from 12 to 49 mm, 4-26 mm and 37?4-56?2% respectively by changing the cooling rates. The incorporation of organic additives can modify not only the pore size but also the pore morphology. Double templates resulted in the coexistence of lamellar pores and large pores. The ability to produce an oriented long range ordered architecture and its manipulation flexibility indicated the potential of this method for different needs in application.

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Section: Resultsmentioning

confidence: 99%

Control of pore structures and sizes in freeze cast ceramics

Zhang

Zhou

Zeng

et al. 2013

Advances in Applied Ceramics

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“…The papers analyzed cover a variety of materials including ceramics (alumina [8–11, 26, 28, 32, 36, 38, 43, 48, 54, 58, 77, 81, 89, 102, 104, 105, 111, 112, 131, 143], zirconia [49, 80, 100, 101, 103, 125–127], silicon carbide [45, 106, 130], silicon nitride [35, 69, 72, 75, 76, 79, 84, 87, 88, 128], mullite [90, 110, 124, 137], hydroxyapatite [12, 37, 44, 52, 61, 68, 78, 86, 91, 95–98, 107, 109, 113, 115, 120, 134, 135], tri-calcium phosphate [31, 40, 56, 117, 118], lead zirconate titanate (PZT) [39, 63, 74, 82, 83, 121, 122], barium titanate [73], silica/kaolinite [47], titania [24, 29, 50, 99], zirconium diboride [51], chromium carbide [42], sialon [64, 66], lithium iron phosphate [60], yttrium orthosilicate [57, 62], cermets [116, …”

Section: Methodsmentioning

confidence: 99%

A meta-analysis of the mechanical properties of ice-templated ceramics and metals

Deville

Meille

Seuba

2015

Science and Technology of Advanced Materials

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Ice templating, also known as freeze casting, is a popular shaping route for macroporous materials. Over the past 15 years, it has been widely applied to various classes of materials, and in particular ceramics. Many formulation and process parameters, often interdependent, affect the outcome. It is thus difficult to understand the various relationships between these parameters from isolated studies where only a few of these parameters have been investigated. We report here the results of a meta analysis of the structural and mechanical properties of ice templated materials from an exhaustive collection of records. We use these results to identify which parameters are the most critical to control the structure and properties, and to derive guidelines for optimizing the mechanical response of ice templated materials. We hope these results will be a helpful guide to anyone interested in such materials.

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“…69 Other slurry properties, such as pH, viscosity, eutectic temperature, osmotic pressure, and surface tension, influence the behavior of the freezing vehicle. 58,59,61,68,[70][71][72][73][74][75][76] Changing these properties is generally accomplished by adding various liquid modifiers. Rheological properties, such as pH and viscosity, show strong correlations to the resulting microstructure and mechanical properties of freezecast scaffolds.…”

Section: Microstructural Controlmentioning

confidence: 99%

“…Rheological properties, such as pH and viscosity, show strong correlations to the resulting microstructure and mechanical properties of freezecast scaffolds. 58 Fu et al 43 and Munch et al 71 used additives, such as dioxane (Fig. 2e), glycerol ( Fig.…”

Section: Microstructural Controlmentioning

confidence: 99%

Biomimetic Materials by Freeze Casting

Porter

McKittrick

Meyers

2013

JOM

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Natural materials, such as bone and abalone nacre, exhibit exceptional mechanical properties, a product of their intricate microstructural organization. Freeze casting is a relatively simple, inexpensive, and adaptable materials processing method to form porous ceramic scaffolds with controllable microstructural features. After infiltration of a second polymeric phase, hybrid ceramic-polymer composites can be fabricated that closely resemble the architecture and mechanical performance of natural bone and nacre. Inspired by the narwhal tusk, magnetic fields applied during freeze casting can be used to further control architectural alignment, resulting in freeze-cast materials with enhanced mechanical properties.

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Effects of rheological properties on ice-templated porous hydroxyapatite ceramics

Cited by 63 publications

References 34 publications

Control of pore structures and sizes in freeze cast ceramics

Control of pore structures and sizes in freeze cast ceramics

A meta-analysis of the mechanical properties of ice-templated ceramics and metals

Biomimetic Materials by Freeze Casting

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