Tricalcium phosphate sheets with chitosan obtained via aqueous tape casting

Abstract Tricalcium phosphate (TCP) is a biomaterial produced in several biomedical applications, in addition to having biocompatibility and osteoconductive capacity. Biodegradable polymers of natural or synthetic origin such as chitosan and polyvinyl alcohol (PVA) have been used for tissue engineering applications because they have the properties of the native organic phase of bone tissue. Thus, the objective of this study was to obtain ceramic tapes based on TCP, chitosan, and PVA through the tape casting method. The viscosity data for all suspensions were ideal for the chosen processing. The thermogravimetric curves showed similar profiles, and it was possible to observe that a greater total mass loss occurred with the increase in the chitosan content. XRD reflections related to the β-TCP phase of the orthorhombic structure were found, showing no phase transformation. SEM analysis showed degrees of roughness on the film surfaces with little influence from the increase in chitosan content.

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Microstructure and Thermoelectric Properties of (Bi0.48Sb1.52)Te3 Thick Films Prepared with Tape Casting Method

Electronics ◽

10.3390/electronics10020140 ◽

2021 ◽

Vol 10 (2) ◽

pp. 140

Author(s):

Lichen Liu ◽

Ziping Cao ◽

Min Chen ◽

Jun Jiang

Keyword(s):

Thermoelectric Properties ◽

Low Cost ◽

Thick Films ◽

Tape Casting ◽

Casting Process ◽

Casting Method ◽

Glass Substrates ◽

Conductive Films ◽

Casting Technology

This paper reports the fabrication and characterization of (Bi0.48Sb1.52)Te3 thick films using a tape casting process on glass substrates. A slurry of thermoelectric (Bi0.48Sb1.52)Te3 was developed and cured thick films were annealed in a vacuum chamber at 500–600 °C. The microstructure of these films was analyzed, and the Seebeck coefficient and electric conductivity were tested. It was found that the subsequent annealing process must be carefully designed to achieve good thermoelectric properties of these samples. Conductive films were obtained after annealing and led to acceptable thermoelectric performance. While the properties of these initial materials are not at the level of bulk materials, this work demonstrates that the low-cost tape casting technology is promising for fabricating thermoelectric modules for energy conversion.

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Fabrication of PVDF–HFP-based microporous membranes by the tape casting method as a separator for flexible Li-ion batteries

Bulletin of Materials Science ◽

10.1007/s12034-021-02420-7 ◽

2021 ◽

Vol 44 (2) ◽

Author(s):

Prerna Chaturvedi ◽

Amarsingh Bhabu Kanagaraj ◽

Amani Alhammadi ◽

Hamda Al Shibli ◽

Daniel S Choi

Keyword(s):

Tape Casting ◽

Microporous Membranes ◽

Li Ion Batteries ◽

Casting Method ◽

Li Ion

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Ultrahigh energy storage density of Ca2+-modified PLZST antiferroelectric ceramics prepared by the tape-casting method

Journal of the European Ceramic Society ◽

10.1016/j.jeurceramsoc.2021.02.013 ◽

2021 ◽

Author(s):

Yujing Zhang ◽

Pin Liu ◽

Yanfeng Qin ◽

Kumara Raja Kandula ◽

Guangzu Zhang ◽

...

Keyword(s):

Energy Storage ◽

Tape Casting ◽

Energy Storage Density ◽

Ultrahigh Energy ◽

Casting Method ◽

Storage Density

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Studies on Highly Dense Pure YIG Polycrystalline Ceramics Fabricated by Tape-casting Method

10.21203/rs.3.rs-57431/v1 ◽

2020 ◽

Author(s):

Chong Zhao ◽

Yingkui Li ◽

Xiaofei Shen ◽

Zhijun Cao ◽

Zhiquan Cao ◽

...

Keyword(s):

Tape Casting ◽

Solid State Reaction Method ◽

Grain Structure ◽

Casting Method ◽

Forming Process ◽

Sem Images ◽

Polycrystalline Ceramics ◽

Pure Phase ◽

One Step ◽

Xrd Patterns

Abstract Pure phase Y3Fe5O12 (YIG) ceramics was successfully produced by tape-casting forming process and one-step solid-state reaction method. With the sintering temperature above 1100 ºC, the pure phase YIG ceramics was synthesized with no YIP or Fe2O3 phase in XRD patterns. YIG ceramic sintering at 1400 ºC for 10 h showed a clear grain structure with an obvious grain boundary, and no pores were observed in the SEM images. YIG ceramics in this paper has a high relative density which was 99.8% and the saturation magnetization was 28.2 emu/g at room temperature. The hysteresis loss at temperatures of 230-360 K was smaller than 10 mJ/kg. The tan Se was nearly zero at 6~7 GHz and 11~12 GHz, showing that it can be used as a good material for microwave applications. In addition, the low values of tan and tan indicates that it may have a good electromagnetic wave absorption ability.

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Fabrication of Silk Fibroin/Graphene Film with High Electrical Conductivity and Humidity Sensitivity

Polymers ◽

10.3390/polym11111774 ◽

2019 ◽

Vol 11 (11) ◽

pp. 1774 ◽

Cited By ~ 6

Author(s):

Haoran Zhang ◽

Juntao Zhao ◽

Tieling Xing ◽

Shenzhou Lu ◽

Guoqiang Chen

Keyword(s):

Mechanical Properties ◽

Electrical Conductivity ◽

Silk Fibroin ◽

Biomedical Applications ◽

Wearable Sensors ◽

Graphene Film ◽

Natural Material ◽

Casting Method ◽

Good Biocompatibility ◽

Minimum Resistance

Silk fibroin (SF) is a natural material with good biocompatibility and excellent mechanical properties, which are complementary to graphene with ultrahigh electrical conductivity. In this study, to maximally combine graphene and silk fibroin, a well-dispersed silk fibroin/graphene suspension was successfully prepared in a simple and effective way. Then we prepared a flexible conductive SF/graphene film with a minimum resistance of 72.1 ± 4.7 Ω/sq by the casting method. It was found that the electrical conductivity of the SF/graphene film was related to the water content of the film, and the variation was more than 200 times. Therefore, it will play an important role in the field of humidity sensors. It also has excellent mechanical properties in both wet and dry states. These unique features make this material a promising future in the fields of biomedical applications, wearable sensors, and implantable internal sensors.

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Influence of Zn and Mg Doping on the Sintering Behavior and Phase Transformation of Tricalcium Phosphate Based Ceramics

Materials Science Forum ◽

10.4028/www.scientific.net/msf.805.706 ◽

2014 ◽

Vol 805 ◽

pp. 706-711 ◽

Cited By ~ 1

Author(s):

Karen C. Kai ◽

Carlos A.V.A. Machado ◽

Luis Antonio Genova ◽

Juliana Marchi

Keyword(s):

Phase Transformation ◽

Tricalcium Phosphate ◽

Sintering Behavior ◽

Drying Process ◽

Zn Doping ◽

Wet Chemical Synthesis ◽

Mg Addition ◽

Tcp Phase ◽

Wet Chemical ◽

Dilatometric Studies

β-tricalcium phosphate based ceramics (β-TCP) are resorbable biomaterials used as bone substitutive materials. Several ions can substitute specific Ca positions in the crystalline structure of TCP, so that general Me-TCP can be obtained. Particularly, magnesium can increase the temperature of β-α-TCP transformation while zinc stimulates the bone formation. In this work, the influence of magnesium or zinc ions on the sintering behavior of Me-TCP was investigated. The powders were produced through wet chemical synthesis with a freeze drying process. The powders were calcined and subsequently uniaxially pressed into pellets. The pellets were sintered up to 1300°C/1h. The influence of Mg or Zn doping was investigated by dilatometric studies, thermal analysis and XRD. The microstructure was evaluated through SEM. The results suggest that Mg increased temperature of β-α-TCP phase transformation. The Me-doped TCP samples can be considered as promising biomaterials, having stimulatory effect of Zn or suitable densification due to Mg addition.

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Preparation of reaction-bonded silicon carbide with well controlled structure by tape casting method

Ceramics International ◽

10.1016/j.ceramint.2011.10.053 ◽

2012 ◽

Vol 38 (3) ◽

pp. 2125-2128 ◽

Cited By ~ 10

Author(s):

Z.H. Luo ◽

D.L. Jiang ◽

J.X. Zhang ◽

Q.L. Lin ◽

Z.M. Chen ◽

...

Keyword(s):

Silicon Carbide ◽

Tape Casting ◽

Casting Method ◽

Controlled Structure

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Silk Fibroin/Hyaluronic Acid Blend Film with Good Water Stability and Cytocompatibility

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.377.209 ◽

2013 ◽

Vol 377 ◽

pp. 209-214

Author(s):

Ling Shuang Wang ◽

Shu Qin Yan ◽

Ming Zhong Li

Keyword(s):

Cell Proliferation ◽

Hyaluronic Acid ◽

Silk Fibroin ◽

Biomedical Applications ◽

Water Resistance ◽

High Water ◽

Casting Method ◽

Blend Ratio ◽

Blend Films

Stimulating cell proliferation is a challenge in the field of silk fibroin-based biomaterials. In this study, silk fibroin/hyaluronic acid blend films were prepared by a casting method using carbodiimide as a cross-linking agent. Carbodiimide induced silk fibroin to form Silk I crystal structure which was not affected by the presence of hyaluronic acid. The films showed high water resistance. In vitro, the performance of these films was assessed by seeding L929 cells. The results indicated that the silk fibroin/hyaluronic acid blend films with the blend ratio of 80/20 and 60/40 promoted cell proliferation compared with the pure silk fibroin or hyaluronic acid film. These results suggest that silk fibroin/hyaluronic acid blend films are water stable and cytocompatible materials which are expected to be useful in biomedical applications.

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