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Journal articles on the topic 'Cold Isostatic Pressing'

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Published: 4 June 2021
Last updated: 5 February 2022

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1

Yang, H. C., J. K. Kim, and K. T. Kim. "Rubber isostatic pressing and cold isostatic pressing of metal powder." Materials Science and Engineering: A 382, no. 1-2 (September 2004): 41–49. http://dx.doi.org/10.1016/j.msea.2004.04.056.

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2

KANDA, Takeshi. "Cold and Hot Isostatic Pressing." Journal of the Society of Mechanical Engineers 89, no. 817 (1986): 1348–52. http://dx.doi.org/10.1299/jsmemag.89.817_1348.

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3

Du, Yan Ying, Yu Sheng Shi, and Qing Song Wei. "Finite Element Simulation of Combined Forming of Selective Laser Sintering and Cold Isostatic Pressing." Applied Mechanics and Materials 26-28 (June 2010): 60–66. http://dx.doi.org/10.4028/www.scientific.net/amm.26-28.60.

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Selective Laser Sintering could manufacture high complex metal parts in short time but with high porosity and low strength. The components from Cold Isostatic Pressing have excellent performance with uniform organizational structure, high size precision, and high density. It, however, could not form high complex parts because of the difficulties of bag manufacture. So it will be a good method to combine Selective Laser Sintering and Cold Isostatic Pressing to make complicated metal parts. In this paper, the specimens of stainless steel were made by the combined Selective Laser Sintering and Cold Isostatic Pressing forming route. And the simulation of Cold Isostatic Pressing was carried out by finite element method and Drucker-Prager-Cap constitutive model in ABAQUS/Explicit computer program. The property of metal powder was measured by experiments. The effects of bag on Cold Isostatic Pressing have been discussed. It is different from the Cold Isostatic Pressing of metal powder that the bag has little influence on both shape and size of the specimen. The results of simulation show a good agreement between the experimental results and the calculated results. The simulation can give a useful direction to dimension and shape designs of the combined forming of Selective Laser Sintering and Cold Isostatic Pressing.
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4

Kim, H. G., H. M. Lee, and K. T. Kim. "Near-Net-Shape Forming of Ceramic Powder Under Cold Combination Pressing and Pressureless Sintering." Journal of Engineering Materials and Technology 123, no. 2 (January 15, 2001): 221–28. http://dx.doi.org/10.1115/1.1354991.

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Near-net-shape forming of zirconia powder was investigated under the combination of cold die and isostatic pressing and pressureless sintering. A combination pressing technique, i.e., die compaction under cold isostatic pressing, allowed the forming of a complex shaped ceramic powder body with better dimensional control than that achieved by cold isostatic pressing and more uniform density distribution than that by die pressing. The constitutive models proposed by Kim and co-workers were implemented into a finite element program (ABAQUS) to simulate densification of ceramic powder under cold compaction and pressureless sintering. Finite element calculations were compared with experimental data for density distribution and deformation of zirconia powder compacts under cold combination pressing and pressureless sintering. Finite element results agreed well with experimental data.
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5

Gao, Hong Xia, Meng Wang, Jiang Lei Fan, Shen Wu, Yan Wang, and Ying Li. "The Effect of Cold Isostatic Pressing on the Microstructure and Properties of Aluminium Matrix Composite Reinforced with Nano/Micro SiC Particles." Key Engineering Materials 815 (August 2019): 167–71. http://dx.doi.org/10.4028/www.scientific.net/kem.815.167.

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Nano sized of 4wt.% and micro sized of 15wt.% SiC particles reinforced aluminum mental matrix composites fabricated by powder metallurgy vacuum hot pressing sintering were treated by cold-isostatic pressing. The effects of cold isostatic pressing on microstructure, density, hardness and wear resistance were investigated and analyzed. The experimental results showed that in the composites reinforced with hybrid SiC particles after cold isostatic pressing treatment, the agglomeration phenomenon and overlap phenomenon around the micron SiC particles disappeared and the surrounding defects were obviously improved, the grains were flattened, and the material was more densely. The composite is characterized by abrasive wear.
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6

SHI, XIAOLIANG, GANGQIN SHAO, XINGLONG DUAN, and RUNZHANG YUAN. "RESEARCH ON SHAPING TECHNOLOGY OF NANOCOMPOSITE WC-6Co POWDER AND PROPERTIES OF SINTERED COMPACTS." International Journal of Nanoscience 05, no. 02n03 (April 2006): 233–38. http://dx.doi.org/10.1142/s0219581x06004292.

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The influences of powder extrusion molding (PEM), die pressing and cold isostatic pressing (CIP) on the green compacts and the sintered compacts of nanocrystalline WC-6 Co composite powder produced by spray pyrogenation-continuous reduction and carburization technology were researched. The results showed that the pore volume distribution, density and scanning electron microscopy (SEM) morphologies of fractured surface of powder extrusion molding or die pressing followed by the cold isostatic pressing consolidation green compacts were better than that of powder extrusion molding or die pressing. The green compacts were sintered by using vacuum sintering plus hot isostatic pressing (HIP), the sintered specimens were characterized by testing density, Rockwell A hardness, saturated magnetization, coercivity force, transverse rupture strength (TRS) and atomic force microscope (AFM) images, the results showed that sintered specimen of the green body that prepared by powder extrusion molding or die pressing followed by cold isostatic pressing had excellent properties of high strength and high hardness, transverse rupture strength of sintered specimen was more than 3100 MPa, Rockwell A hardness of sintered body was more than 93. Ultrafine WC-6 Co cemented carbide rods with excellent mechanical properties and fine microstructure were obtained.
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7

Henderson, R. J., H. W. Chandler, A. R. Akisanya, H. Barber, and B. Moriarty. "Finite element modelling of cold isostatic pressing." Journal of the European Ceramic Society 20, no. 8 (July 2000): 1121–28. http://dx.doi.org/10.1016/s0955-2219(99)00280-0.

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8

Matuła, Izabela, Grzegorz Dercz, Maciej Zubko, Joanna Maszybrocka, Justyna Jurek-Suliga, Sylwia Golba, and Izabela Jendrzejewska. "Microstructure and Porosity Evolution of the Ti–35Zr Biomedical Alloy Produced by Elemental Powder Metallurgy." Materials 13, no. 20 (October 13, 2020): 4539. http://dx.doi.org/10.3390/ma13204539.

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In the present study, the structure and porosity of binary Ti–35Zr (wt.%) alloy were investigated, allowing to consider powder metallurgy as a production method for new metallic materials for potential medical applications. The porous Ti–Zr alloys were obtained by milling, cold isostatic pressing and sintering. The pressure during cold isostatic pressing was a changing parameter and was respectively 250, 500, 750 and 1000 MPa. The X-ray diffraction study revealed only the α phase, which corresponds to the Ti–Zr phase diagram. The microstructure of the Ti–35Zr was observed by optical microscopy and scanning electron microscopy. These observations revealed that the volume fraction of the pores decreased from over 20% to about 7% with increasing pressure during the cold isostatic pressing. The microhardness measurements showed changes from 137 HV0.5 to 225 HV0.5.
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9

Kim, K. T., J. H. Cho, and J. S. Kim. "Cold Compaction of Composite Powders." Journal of Engineering Materials and Technology 122, no. 1 (July 16, 1999): 119–28. http://dx.doi.org/10.1115/1.482775.

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Densification behavior of composite powders was investigated under cold compaction. Experimental data were obtained for mixed copper and tungsten powders with various volume fractions of tungsten powder under cold isostatic pressing and die compaction. A model was also proposed for densification of mixed—soft and hard—metal powders under cold compaction. Theoretical predictions from the proposed model and models in the literature were compared with experimental data. The agreements between experimental data and theoretical predictions from the proposed model are very good for composite powders at initial stage under cold isostatic pressing. Theoretical predictions, however, underestimate experimental data under cold die compaction. [S0094-4289(00)01901-0]
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10

Al Bakri, A. M. Mustafa, Mohd Noor Ahmad Fauzi, H. Kamarudin, M. N. Norazian, M. A. A. Salleh, and A. Alida. "Mechanical Properties of ZTA Composite Using Cold Isostatic Pressing and Uniaxial Pressing." Advanced Materials Research 740 (August 2013): 728–33. http://dx.doi.org/10.4028/www.scientific.net/amr.740.728.

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Alumina-zirconia composite is an engineering material with a great potential to be develop for application as high temperature resistance structural material. In this research, zirconia toughness alumina (ZTA) was produced by physical interaction between Al2O3powder and Y2O3-ZrO2powder. Two composition of powder with different Al2O3: Y2O3-ZrO2ratio was used, 70:30 and 80:20 by weight. Two different compaction methods, i.e. uniaxial pressing and cold isostatic pressing (CIP) with a maximum load of 150 MPa were used in this research to investigate the differences in properties of composites. Sintering process was done at four different temperatures with the heating rate is 5 o C/ min with a soaking time of five hours. Mechanical testing, i.e. compressive strength and hardness was performed to all samples. The microstructure analysis using a Scanning Electron Microscope SEM was also studied. From the result, the composite with the ratio of 70:30 showed better mechanical properties as compared to 80:20 composite. Addition of zirconia in the composite gave an increased in toughness due to transformation toughening mechanism of tetragonal to monoclinic phase. As a conclusion the composites produced high compaction green density will improved the sintering process, resulting in improved mechanical properties.
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11

Veselov, Sergey, Natalya Belousova, Roman Timarevskiy, and Nina Cherkasova. "Development Modes of Prior Free Sintering to Form a High-Density Fine Grain Ceramics after HIP." Applied Mechanics and Materials 698 (December 2014): 457–60. http://dx.doi.org/10.4028/www.scientific.net/amm.698.457.

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In this paper the two methods of pre-operation green samples to hot isostatic pressing (HIP) were investigated. The influence the method of formation (uniaxial and cold isostatic pressing) and the temperature-time parameters on property of samples was analyzed. Structural investigation was carried out and physical properties of samples were defined. The recommendations for pre-operation and uses of sintering modes samples for HIP were given.
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12

Wang, Yan Hui, Qi Liu, Xin Wei Bo, Xiao Yu Wang, Chun Dong Jiang, and Rui Tang. "The Study on Sintering Capabilities of High Purity Metal Vanadium Powder." Key Engineering Materials 807 (June 2019): 31–36. http://dx.doi.org/10.4028/www.scientific.net/kem.807.31.

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High purity metal vanadium powder was milled by high energy ball milling, and the grain size and morphology of vanadium powder was observed by electron probe, and the stress-strain curve was measured by CMT5305 universal testing machine for research of the mechanical property. In order to investigate the effect of sintering process on the property of product, the vanadium powder was sintered by the hot pressing sintering process and the cold isostatic pressing with vacuum sintering process respectively. The experimental results show that for the cold isostatic pressing with vacuum sintering process, the density of raw compact increases with the increase of pressing pressure. When the pressure increases to 280 MPa, the density and relative density of raw compact are 3.99 g·cm-3 and 66.94% respectively, the density and relative density of product after sintering are 5.28 g·cm-3 and 88.59% respectively. With the pressure increasing from 80 MPa to 200 MPa, the compressive strength increases significantly from 0.4 MPa to 6.0 MPa, the pressure increases to 280 MPa, the compressive strength slowly increases to 7.4 MPa. For the hot pressing sintering process, the relative density of product is higher than that of cold isostatic pressing with vacuum sintering process, and the density and relative density reach to 5.51 g·cm-3 and 92.91% respectively under 280 MPa pressure.
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13

Seo, Yoon-Jeong, Kwi-Dug Yun, Hyun-Seung Kim, and Sang-Won Park. "Adaptability of zirconia core fabricated by cold isostatic pressing." Journal of Korean Academy of Prosthodontics 48, no. 2 (2010): 143. http://dx.doi.org/10.4047/jkap.2010.48.2.143.

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14

Ng, L. S., N. L. Loh, and F. Y. C. Boey. "Cold-hot isostatic pressing of Mar M200 superalloy powders." Journal of Materials Processing Technology 67, no. 1-3 (May 1997): 143–49. http://dx.doi.org/10.1016/s0924-0136(96)02834-8.

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15

LI, J., I. ALATLIKUT, and L. HERMANSSON. "High-strength dental gypsum prepared by cold isostatic pressing." Biomaterials 14, no. 15 (1993): 1186–87. http://dx.doi.org/10.1016/0142-9612(93)90165-x.

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16

Kubrin, R., J. J. do Rosário, and G. A. Schneider. "Transparent nanophosphor films with high quantum efficiency through cold compaction." RSC Advances 5, no. 32 (2015): 25555–64. http://dx.doi.org/10.1039/c5ra01248a.

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17

RAMESH, S., P. CHRISTOPHER, C. Y. TAN, and W. D. TENG. "THE EFFECT OF COLD ISOSTATIC PRESSING ON THE SINTERABILITY OF SYNTHESIZED HA." Biomedical Engineering: Applications, Basis and Communications 16, no. 04 (August 25, 2004): 199–204. http://dx.doi.org/10.4015/s101623720400027x.

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The effect of cold isostatic pressing (CIP) on the sinterability of a laboratory synthesized hydroxyapatite (HA) powder was investigated. The starting powder was initially uniaxially diepressed at about 6 kN force to form disk and rectangular green compacts. Two batches of green samples were prepared, i.e. one batch was in the as-compacted state (Un-CIP) and another batch samples was subjected to cold isostatic press at 200 MPa (CIP). The latter samples exhibited alinear shrinkage of ∼16% prior to sintering. All the samples were sintered in air at temperatures ranging from 700°C to 1400°C. The densification behaviour of HA was evaluated in terms of linear shrinkage, phase stability, bulk density, Vickers hardness and Young's modulus. The results revealed that green samples subjected to cold isostatic pressing exhibited better sinterability and possessed excellent mechanical properties. This effect is more pronounced particularly for the low temperature sintering regime i.e. < 1100°C.
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18

Yang, Zhi Qiang, Yong Liu, Bao Hong Tian, and Yi Zhang. "Hot Compression Performance of TiC10/Cu-Al2O3 Composite Prepared by Vacuum Hot-Pressed Sintering." Advanced Materials Research 750-752 (August 2013): 99–102. http://dx.doi.org/10.4028/www.scientific.net/amr.750-752.99.

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Use VDBF-250 vacuum hot pressing sintering furnace TiC10/Cu-Al2O3composite was prepared by vacuum-pressed sintering. In the cold isotatic pressing machine for sintering state sample was cold isostatic pressing and detection performance. Using the Gleeble-1500D simulator, the high-temperature plastic deformation behavior of TiC10/Cu-Al2O3composite was investigated at 450850°C with the strain rate of 0.0011s1and total strain of 0.7 the dynamic recrystallization behavior of the composite was studied. The results show that the density, microhardness and electrical conductivity of the composite are 98.53%, 161HV and 48.7%IACS. After the isostatic cool pressing, The comprehensive performance of the material were improved. The softening mechanism of the dynamic recrystallization is a feature of high-temperature flow stressstrain curves of the composites, and the peak stress increases with the decrease of deformation temperature or the increase of strain rate, and Belong to temperature and strain rate sensitive material.
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19

Gao, Fang, Jian Liu, and Chong Hai Wang. "Porous Silicon Nitride Prepared by Cold Isostatic Pressure." Advanced Materials Research 412 (November 2011): 179–82. http://dx.doi.org/10.4028/www.scientific.net/amr.412.179.

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Porous silicon nitride with pore forming agent of starch were prepared by cold isostatic pressing, forming problem of complex shapes were solved by methods of carbonization of starch and decreasing forming pressure. Products of porous silicon nitride had the performance parameter with density 1.5g/cm3, porosity over 55%, bending strength over 100 MPa.
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20

Moon, In-Hyung, Jin-Chun Kim, and Myung-Jin Suk. "Cold Isostatic Pressing of MIM Debound Part for Performance Improvement." Journal of the Japan Society of Powder and Powder Metallurgy 42, no. 3 (1995): 347–52. http://dx.doi.org/10.2497/jjspm.42.347.

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21

Kamiya, Hidehiro, Chiaki Nakayama, and Genji Jimbo. "High-pressure Cold Isostatic Pressing of Ultra-fine Oxide Powders." KAGAKU KOGAKU RONBUNSHU 19, no. 2 (1993): 220–29. http://dx.doi.org/10.1252/kakoronbunshu.19.220.

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22

YASUDA, Kouichi, Satoshi TANAKA, and Makio NAITO. "229 Modeling of Ceramic Granule Collapse during Cold Isostatic Pressing." Proceedings of the Materials and processing conference 2015.23 (2015): _229–1_—_229–5_. http://dx.doi.org/10.1299/jsmemp.2015.23._229-1_.

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23

YASUDA, Kouichi, Satoshi TANAKA, and Makio NAITO. "Formulation of Collapse Probability of Granules during Cold Isostatic Pressing." Proceedings of Mechanical Engineering Congress, Japan 2016 (2016): S0420101. http://dx.doi.org/10.1299/jsmemecj.2016.s0420101.

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24

Khor, K. A., F. Y. C. Boey, and T. Sano. "Granulation of Al-alloy composite powders for cold isostatic pressing." Journal of Materials Processing Technology 37, no. 1-4 (February 1993): 431–39. http://dx.doi.org/10.1016/0924-0136(93)90107-h.

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25

Taveri, Gianmarco, Ondrej Hanzel, Jaroslav Sedláček, Jaromír Toušek, Zuzana Neščaková, Martin Michálek, Ivo Dlouhý, and Miroslav Hnatko. "Consolidation of Bioglass® 45S5 suspension through cold isostatic pressing." Ceramics International 47, no. 3 (February 2021): 4090–96. http://dx.doi.org/10.1016/j.ceramint.2020.09.283.

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26

Govindarajan, R. M., and N. Aravas. "Deformation processing of metal powders: Part I—Cold isostatic pressing." International Journal of Mechanical Sciences 36, no. 4 (April 1994): 343–57. http://dx.doi.org/10.1016/0020-7403(94)90040-x.

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27

Akimov, G. Ya, V. M. Timchenko, and P. A. Arsen'ev. "Mechanical properties of hydroxylapatite specimens obtained by cold isostatic pressing." Refractories 35, no. 5 (May 1994): 159–61. http://dx.doi.org/10.1007/bf02227381.

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28

Zhang, Yangwen, Jize Wang, Xue Liu, Wangnan Li, Fuzhi Huang, Yong Peng, Jie Zhong, Yibing Cheng, and Zhiliang Ku. "Enhancing the performance and stability of carbon-based perovskite solar cells by the cold isostatic pressing method." RSC Adv. 7, no. 77 (2017): 48958–61. http://dx.doi.org/10.1039/c7ra07579k.

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The cold isostatic pressing method was used as a post-treatment process for enhancing the power conversion efficiency and stability of carbon-based perovskite solar cells without hole transport materials.
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29

Gómez-Rodríguez, Cristian, Daniel Fernández-González, Linda Viviana García-Quiñonez, Guadalupe Alan Castillo-Rodríguez, Josué Amilcar Aguilar-Martínez, and Luis Felipe Verdeja. "MgO Refractory Doped with ZrO2 Nanoparticles: Influence of Cold Isostatic and Uniaxial Pressing and Sintering Temperature in the Physical and Chemical Properties." Metals 9, no. 12 (December 1, 2019): 1297. http://dx.doi.org/10.3390/met9121297.

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The chemical environment and the internal conditions of the furnaces and ladles are extremely aggressive for the refractories, so metallurgical industries demand refractory linings with greater durability and resistance to avoid unforeseen stoppages and to reduce the changes of the furnace lining. Therefore, the current work aims to evaluate the impact of the additions of ZrO2-nanoparticles (1, 3, and 5 wt. %) in magnesia-based bricks. A comparative study of the physical and chemical properties in bricks obtained using two cold pressing techniques (uniaxial and isostatic pressing) and two sintering temperatures (1550 and 1650 °C) was carried out. The microstructure and crystalline phase characteristics obtained after the heat treatments and the slag corrosion test was studied using scanning electron microscopy/electron dispersive X-ray spectroscopy (SEM/EDX) and X-ray diffraction (XRD). The results reveal that the sample with 5 wt. % of ZrO2 nanoparticles (obtained by cold isostatic pressing and sintering at 1650 °C) has the lowest porosity and greatest resistance to penetration of blast furnace slag.
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30

Tadic, D., and M. Epple. "Mechanically stable implants of synthetic bone mineral by cold isostatic pressing." Biomaterials 24, no. 25 (November 2003): 4565–71. http://dx.doi.org/10.1016/s0142-9612(03)00281-3.

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31

GOMI, Kenjiro, Kenji TANAKA, and Hidehiro KAMIYA. "Ultra-High-Pressure Cold Isostatic Pressing of Barium Titanate Ultrafine Particles." Journal of the Ceramic Society of Japan 111, no. 1292 (2003): 271–76. http://dx.doi.org/10.2109/jcersj.111.271.

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32

Moon, I. H. "Cold isostatic pressing of debound injection moulded part for improved performance." Metal Powder Report 51, no. 1 (January 1997): 36. http://dx.doi.org/10.1016/s0026-0657(97)80107-5.

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33

Niino, M., A. Kumakawa, R. Watanabe, and Y. Doi. "Evaluation of cold isostatic pressing of high-pressure thrust chamber closeout." Journal of Propulsion and Power 2, no. 1 (January 1986): 25–30. http://dx.doi.org/10.2514/3.22841.

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34

ICHIKAWA, Shigeki, and Hiroshi ONA. "Lapping of Ceramic Green Balls Formed by Cold Isostatic Pressing Process." Journal of the Japan Society for Precision Engineering 64, no. 12 (1998): 1816–20. http://dx.doi.org/10.2493/jjspe.64.1816.

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35

Martı́nez, B., F. Sandiumenge, T. Puig, X. Obradors, L. Richard, and J. Rabier. "Enhanced critical currents in melt textured YBa2Cu3O7 by cold isostatic pressing." Applied Physics Letters 74, no. 1 (January 4, 1999): 73–75. http://dx.doi.org/10.1063/1.122955.

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36

HAMANAKA, Jyunichi, Masato NAKATSUKA, Takashi SUGITA, Sigekatsu SUGIYAMA, and Shin KOGA. "Mechanical Behaviour of the Ceramic Granule Compact in Cold Isostatic Pressing." JSME international journal. Ser. 1, Solid mechanics, strength of materials 35, no. 4 (1992): 470–74. http://dx.doi.org/10.1299/jsmea1988.35.4_470.

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37

Kamiya, Hidehiro, Chiaki Nakayama, and Genji Jimbo. "High-pressure Cold Isostatic Pressing of Ultra-fine Oxide Powders [Translated]†." KONA Powder and Particle Journal 12 (1994): 161–72. http://dx.doi.org/10.14356/kona.1994024.

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38

Bewlay, B. P. "Consolidation dynamics of tungsten powder during dry bag cold isostatic pressing." International Journal of Refractory Metals and Hard Materials 11, no. 3 (January 1992): 165–74. http://dx.doi.org/10.1016/0263-4368(92)90059-b.

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39

Liu, Yinan, and Jiaqi Zhu. "Fabrication of transparent MgAl2O4 ceramics by gelcasting and cold isostatic pressing." Ceramics International 46, no. 4 (March 2020): 4154–58. http://dx.doi.org/10.1016/j.ceramint.2019.10.132.

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40

Liu, Weihong, and Hong Wang. "Enhanced dielectric properties of Bi1.5ZnNb1.5O7 thick films via cold isostatic pressing." Journal of Electroceramics 29, no. 3 (September 1, 2012): 183–86. http://dx.doi.org/10.1007/s10832-012-9758-8.

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41

Lin, Jianjian, Yong Peng, Alexander R. Pascoe, Fuzhi Huang, Yi-Bing Cheng, Yoon-Uk Heo, Andrew Nattestad, et al. "A Bi-layer TiO2 photoanode for highly durable, flexible dye-sensitized solar cells." Journal of Materials Chemistry A 3, no. 8 (2015): 4679–86. http://dx.doi.org/10.1039/c4ta06656a.

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A new photoanode architecture for cold isostatic pressing (CIP), with microstructured TiO2 sea-urchin-like assemblies, composed of high aspect-ratio single-crystal nanoribbons deposited onto P25, was rationally designed for highly durable, flexible dye-sensitized solar cells.
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42

Palomas, Jednupong, and Oratai Jongprateep. "Effects of Aluminium Contents and Consolidation Techniques on Chemical Composition, Microstructure and Dielectric Properties of Strontium Titanate." Key Engineering Materials 751 (August 2017): 403–9. http://dx.doi.org/10.4028/www.scientific.net/kem.751.403.

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It has been accepted that compositions and microstructures significantly affected dielectric properties of materials. In general, chemical compositions were influenced by additive contents, while consolidation techniques controlled microstructure of the materials to have appropriate grain sizes. This study, therefore, aimed at examining effects of aluminium contents and consolidation techniques on chemical compositions and microstructures of the strontium titanate. Experimental results revealed that at higher aluminium contents, only small quantities of TiO 2 secondary phase were present, while grain sizes generally decreased. The results also indicated that the cold isostatic pressing technique led to high sintered density. The greatest dielectric constant (281.5 at 1 MHz) obtained in this study was achieved in strontium titanate sample with 30 at% of Al addition, pressed by cold isostatic pressing. Enhancement of dielectric constant of the sample was attributed to low secondary phase, fine grain sizes and high sintered density.
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43

Li, Wenxia, and John J. Lannutti. "Cold isostatic compaction of nano-size powders: Surface densification and dimensional asymmetry." Journal of Materials Research 17, no. 11 (November 2002): 2794–801. http://dx.doi.org/10.1557/jmr.2002.0406.

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Cold isostatic pressing (CIP) is often used in the compaction of nano-sized powders. For technological reasons, however, uniaxial pressing prior to CIP takes place. This paper reveals the first quantitative measurements of density gradients within and the asymmetric sintering response of nanoscale zirconia compacts formed by (i) simple uniaxial compaction and (ii) specific ratios of uniaxial and CIP pressure. We find that CIP forms an exterior “skin” of higher but variable surface density and decreases the width of the density distribution. It does not eliminate density gradients; nonuniform shrinkage still occurs during sintering. The high- and low-density zones (the moving and fixed ram ends, respectively) that form during uniaxial compaction are reversed during CIP. Considering both density distribution width and spring-back cracking, the “best” uniaxial-CIP pressure combination is 1–20 ksi for this particular powder and an L/D of 1.0. The greater final compaction of the low-density zone during CIP causes relatively large variations in final dimensions (nearly 400 microns) in spite of the smaller density distribution width. The usually neglected uniaxial pressing step has definite technological impacts on the production of nanostructured components via compaction.
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44

Li, Jin Ping, Cheng Yang, Yu Han Li, and Song He Meng. "Preparation and Characteristics of ZrO2/ZrW2O8 Composites with Low Thermal Expansion." Key Engineering Materials 768 (April 2018): 87–91. http://dx.doi.org/10.4028/www.scientific.net/kem.768.87.

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The ZrO2/ZrW2O8 ceramic matrix composites have been prepared by the two different processes: (1) ZrO2 and ZrW2O8 powders were mixed directly as raw material, then compacted by cold isostatic pressing under 200MPa, and finally, the ceramic matrix composites with low thermal expansion can be prepared by use of heat-pressing sintering or atmospheric sintering at temperature 1215oC. (2) ZrO2 (with excess mass) and WO3 powers were mixed as raw material, then compacted by cold isostatic pressing under 200MPa, and finally, the ZrO2/ZrW2O8 ceramic matrix composites can be made by use of heat-pressing sintering or atmospheric sintering at temperature 1215 oC after ZrW2O8 were synthesized by in-situ reaction of ZrO2 and WO3 powders at the same temperature. The microstructure, density, ZrW2O8 decomposition degree and the thermal expansion coefficient were compared among the sintered samples fabricated by the above two different methods, and affected by the different process parameters. The results show that the ceramic matrix composites with low thermal expansion are really composed of ZrO2, ZrW2O8 and WO3, and their relative densities are all more than 95%. Compared with the composites prepared by in-situ reaction, the densities, ZrW2O8 decomposition degree and the thermal expansion coefficient of the composites made by direct mixing are higher, less and smaller, respectively.
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45

Fu, X. K., V. Rouessac, Y. C. Guo, P. N. Mikheenko, H. K. Liu, and S. X. Dou. "Bi-2223 bar current leads fabricated by the combination of cold isostatic pressing and hot-pressing." Physica C: Superconductivity 320, no. 3-4 (July 1999): 183–88. http://dx.doi.org/10.1016/s0921-4534(99)00343-3.

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46

Belousova, Natalya, Sergey Veselov, Dmitriy Anufrienko, and Olga Goryainova. "Evaluating the Effectiveness of Axial and Isostatic Pressing Methods of Ceramic Granular Powder." Applied Mechanics and Materials 698 (December 2014): 472–77. http://dx.doi.org/10.4028/www.scientific.net/amm.698.472.

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The paper assesses the effectiveness of uniaxial and cold isostatic consolidation methods of medium size ceramic granular press-powders. The results of fractographic studies of raw compacts were obtained with different methods of forming. The estimation of the physical properties of raw compacts and sintered ceramic samples was done. The results of measurement of the bending strength of the ceramic material are shown. It has been established that the application of isostatic forming, compared with axial allows increasing the flexural strength of the ceramic material is more than 35% due to creating denser structure and enhancing adhesion between the granules under otherwise equal technological conditions
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47

Prokhorov, I. Yu, and G. Ya Akimov. "Cold isostatic pressing as a method of pre-forming green ceramic ware." Journal of the European Ceramic Society 17, no. 2-3 (January 1997): 129–31. http://dx.doi.org/10.1016/s0955-2219(96)00153-7.

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48

Pedersen, Jane, Donald E. Macphee, and Howard W. Chandler. "Cold isostatic pressing of cement pastes to produce pore reduced cement (PRC)." Journal of the European Ceramic Society 18, no. 14 (December 1998): 2089–93. http://dx.doi.org/10.1016/s0955-2219(98)00106-x.

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DU, Yan-ying, Yu-sheng SHI, and Qing-song WEI. "Plastic forming simulations of cold isostatic pressing of selective laser sintered components." Transactions of Nonferrous Metals Society of China 21, no. 5 (May 2011): 1118–22. http://dx.doi.org/10.1016/s1003-6326(11)60830-3.

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50

Essa, Khamis, Parastoo Jamshidi, Ji Zou, Moataz M. Attallah, and Hany Hassanin. "Porosity control in 316L stainless steel using cold and hot isostatic pressing." Materials & Design 138 (January 2018): 21–29. http://dx.doi.org/10.1016/j.matdes.2017.10.025.

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