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Online since: December 2003
Authors: Takashi Nakamura, Tadashi Kokubo, Hyun Min Kim, Kawashita Masakazu, Tian Ying Xiong, Xin-Yu Cui, Jie Wu, Hua-Zi Jin
Journal Citation (to be inserted by the publisher )
Copyright by Trans Tech Publications
Effect of Surface Morphology and Crystal Structure on Bioactivity of
Titania Films Formed on Titanium Metal via Anodic Oxidation
in Sulfuric Acid Solution
Tian-Ying Xiong
1
, Xin-Yu Cui
1,2
, Hyun-Min Kim
3
, Masakazu Kawashita2 ,
Tadashi Kokubo4 , Jie Wu1 , Hua-Zi Jin1 and Takashi Nakamura5
1
Institute of Metal Research, Chinese Academy of Sciences,
72 Wenhua Road, Shenyang, 110016, P.R.
China tyxiong@imr.ac.cn 2 Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan 3 Department of Ceramic Engineering, School of Advanced Materials Engineering, Yonsei University 134 Shinchon-dong, Seodaemun-gu, Seoul 120-749, Korea 4 Research Institute for Science and Technology, Chubu University, 1200 Matsumoto-cho, Kasugai-shi, Aichi 487-8501, Japan 5 Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Sakyo-ku, Kyoto 606-8507, Japan Keywords: titanium metal, anodic oxidation, sulfuric acid solution, apatite, simulated body fluid Abstract.
They are called bioactive ceramics, and have been used as important bone repairing materials.
An essential requirement for an artificial material to bond to living bone is the formation of a bonelike apatite layer on its surface in a body environment.
China tyxiong@imr.ac.cn 2 Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan 3 Department of Ceramic Engineering, School of Advanced Materials Engineering, Yonsei University 134 Shinchon-dong, Seodaemun-gu, Seoul 120-749, Korea 4 Research Institute for Science and Technology, Chubu University, 1200 Matsumoto-cho, Kasugai-shi, Aichi 487-8501, Japan 5 Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Sakyo-ku, Kyoto 606-8507, Japan Keywords: titanium metal, anodic oxidation, sulfuric acid solution, apatite, simulated body fluid Abstract.
They are called bioactive ceramics, and have been used as important bone repairing materials.
An essential requirement for an artificial material to bond to living bone is the formation of a bonelike apatite layer on its surface in a body environment.
Online since: December 2012
Authors: Hamzah Rosniza, Abu Bakar Mohamad
Experimental
Materials
All chemicals were obtained commercially and used without further purification unless otherwise stated.
Polymeric Materials Encyclopedia, edited by J.C.
Epoxidized Natural Rubber, volume 4, chapter 3, Elsevier Applied Science (1987)
Materials: from Fundamentals to Applications, volume 5 of Research at Universiti Sains Malaysia, Universiti Sains Malaysia (2005)
Chinese Journal of Chemistry Vol. 27 (2009), p. 369
Polymeric Materials Encyclopedia, edited by J.C.
Epoxidized Natural Rubber, volume 4, chapter 3, Elsevier Applied Science (1987)
Materials: from Fundamentals to Applications, volume 5 of Research at Universiti Sains Malaysia, Universiti Sains Malaysia (2005)
Chinese Journal of Chemistry Vol. 27 (2009), p. 369
Online since: September 2014
Authors: Artem Marmulev, Didier Huin, Eliette Mathey, Ronan Jacolot
Puchkov, Materials Science Forum Vols. 467-470 (2004) pp 323-328
[5] P.
XL, 2002, pp. 1105-1116 [6] Marmulev A.V., Herman G., Poliak E.I., Kaputkina L.M., Proceeding of International Conference Materials Science and Technology (MS&T) 2011, 2011, October 16-20, Columbus, Ohio, USA, p. 470 – 476 [7] J.K.
Wilshire, Journal of Materials Processing Technology, V.120, (2002), pp. 316-321 [8] S.
XL, 2002, pp. 1105-1116 [6] Marmulev A.V., Herman G., Poliak E.I., Kaputkina L.M., Proceeding of International Conference Materials Science and Technology (MS&T) 2011, 2011, October 16-20, Columbus, Ohio, USA, p. 470 – 476 [7] J.K.
Wilshire, Journal of Materials Processing Technology, V.120, (2002), pp. 316-321 [8] S.
Online since: June 2020
Authors: Chang Sheng Yue, Chang Bo Liu
After then, they used Cu, Fe3O4 and Metallurgical coke as microwave absorbents to found the effects of these materials on microwave pyrolysis again.
(4) (5) (6) (7) (8) (9) (10) Where mc, coal, mc, solid, mc, liquid, mc, gas are the masses of carbon in coal, solid, liquid and gas (g); φc, coal, φc, solid, φc, liquid and φc, gas separately are the carbon masses fraction of coal, solid, gas and liquid (wt %); φCO, φCO2, φCH4, φCnHm, φN2 and φ* are the masses fraction of gas (CO, CO2, CH4, CnHm, N2 and other materials) (%); MC, MCO, MCO2, MCH4, MCnHm, MN2 and M* separately represents the molar mass of carbon, carbon dioxide, carbon monoxide, methane, hydrocarbon, and average of other materials (g/mol), in which the ranges of n and m are no less than 6 in Eq. (7), the ranges of n and m are 2 to 5, and 4 to 12 in Eq. (8). 1.3.2 Analytical methods The component and main elements of coal are analyzed on the basis of the national standard of P.
The region 1 was the selection of the brighter region in Fig.7, which meant the contents of conductive materials were higher.
Project planning and practical exploration of “science and technology cloud” for clean coal technology, Institute of high energy physics, Chinese Academy of Sciences, Beijing, 2013
Hydrothermal preparation of petal-like MoS2 and its TG-FTIR analysis: Submitted to Journal of Applied Spectroscopy (2019), accepted
(4) (5) (6) (7) (8) (9) (10) Where mc, coal, mc, solid, mc, liquid, mc, gas are the masses of carbon in coal, solid, liquid and gas (g); φc, coal, φc, solid, φc, liquid and φc, gas separately are the carbon masses fraction of coal, solid, gas and liquid (wt %); φCO, φCO2, φCH4, φCnHm, φN2 and φ* are the masses fraction of gas (CO, CO2, CH4, CnHm, N2 and other materials) (%); MC, MCO, MCO2, MCH4, MCnHm, MN2 and M* separately represents the molar mass of carbon, carbon dioxide, carbon monoxide, methane, hydrocarbon, and average of other materials (g/mol), in which the ranges of n and m are no less than 6 in Eq. (7), the ranges of n and m are 2 to 5, and 4 to 12 in Eq. (8). 1.3.2 Analytical methods The component and main elements of coal are analyzed on the basis of the national standard of P.
The region 1 was the selection of the brighter region in Fig.7, which meant the contents of conductive materials were higher.
Project planning and practical exploration of “science and technology cloud” for clean coal technology, Institute of high energy physics, Chinese Academy of Sciences, Beijing, 2013
Hydrothermal preparation of petal-like MoS2 and its TG-FTIR analysis: Submitted to Journal of Applied Spectroscopy (2019), accepted
Online since: November 2022
Authors: Amara Loulizi, Wissem Taktak
All materials are assumed linear elastic and the contact area is assumed circular with uniform pressure.
Table 1 shows the properties of all the materials used to construct the pavement structures.
Table 2: Unit prices for the materials used for the pavement structures.
Table 3: Energy consumption and GHG emissions for elemental materials, transport, and production process.
This is because IP structures use the least amount of binding constituents (cement and bitumen), which are the most expensive construction materials.
Table 1 shows the properties of all the materials used to construct the pavement structures.
Table 2: Unit prices for the materials used for the pavement structures.
Table 3: Energy consumption and GHG emissions for elemental materials, transport, and production process.
This is because IP structures use the least amount of binding constituents (cement and bitumen), which are the most expensive construction materials.
Online since: January 2021
Authors: Wei Huang, Bo Wu, Yu Fang Wu
Excavation optimization analysis model
According to the geological survey report, the more-coulomb constitutive model was adopted in the calculation process, and the mechanical indexes of the surrounding rock in the calculation area were shown in Table 2: Material Parameter Table.
Material Parameter Elastic Modulus /GPa Poisson's ratio Cohesive force /MPa Internal friction angle /º Surrounding rock 1.5 0.3 0.45 30 Primary support 36.6 0.2 Second liner 33.5 0.2 Rock bolt 210 0.69 30 In the process of calculation, the Mohr-coulomb model was used to simulate the surrounding rock of the tunnel, the elastic model was used to simulate the initial support concrete, and shell element was used to simulate the secondary lining.
Acknowledgement The authors acknowledge the financial support of the National Science of China (51478118, 51678164), the Guangxi Natural Science Foundation Program (2018GXNSFDA138009), the Guangxi Science and Technology Plan Projects (AD18126011) and the China Scholarship Council.
Journal of Henan University of Science and Technology (Natural Science) 38(04),66-71+119-120 [2] Zeng Shuai. 2019.
China Railway Science 24(5):23~28
Material Parameter Elastic Modulus /GPa Poisson's ratio Cohesive force /MPa Internal friction angle /º Surrounding rock 1.5 0.3 0.45 30 Primary support 36.6 0.2 Second liner 33.5 0.2 Rock bolt 210 0.69 30 In the process of calculation, the Mohr-coulomb model was used to simulate the surrounding rock of the tunnel, the elastic model was used to simulate the initial support concrete, and shell element was used to simulate the secondary lining.
Acknowledgement The authors acknowledge the financial support of the National Science of China (51478118, 51678164), the Guangxi Natural Science Foundation Program (2018GXNSFDA138009), the Guangxi Science and Technology Plan Projects (AD18126011) and the China Scholarship Council.
Journal of Henan University of Science and Technology (Natural Science) 38(04),66-71+119-120 [2] Zeng Shuai. 2019.
China Railway Science 24(5):23~28
Online since: September 2013
Authors: Chun Hong Jia, Li Chen
Degradation and Persistence of Carbofuran in Peanut and Soil in Field Trails as Determined by GC-MS
Li Chen 1,2,a * Chunhong Jia1,2,b
1 Institute of Plant and Environment Protection, Beijing Academy of Agriculture and Forestry Science, Beijing 100097, China
2Beijing Research Center for Agrifood Testing and Farmland Monitoring, Beijing Academy of Agriculture and Forestry Science, Beijing 100097, China
aemail: chenli517@126.com, bemail Email: chjia55@yahoo.com.cn, * Corresponding author
Keywords: Dissipation• Residue• Carbofuran• 3-hydroxy carbofuran• Peanut
Abstract.
Materials and methods Chemicals.
Acknowledgments This study was supported by the National Natural Science Foundation of China (41101482), Beijing Natural Science Foundation(8122021) and Youth Program Beijing Academy of Agricultural and Forestry Science(QN201104).
Yu, C.Q.Yu: Journal of Chengdu University of Technology( Science & Technology Edition, In Chinese). 32(2005) 383-385
Materials and methods Chemicals.
Acknowledgments This study was supported by the National Natural Science Foundation of China (41101482), Beijing Natural Science Foundation(8122021) and Youth Program Beijing Academy of Agricultural and Forestry Science(QN201104).
Yu, C.Q.Yu: Journal of Chengdu University of Technology( Science & Technology Edition, In Chinese). 32(2005) 383-385
Online since: November 2017
Authors: Igor Barényi, Ján Bezecný
Every violation of optimal production technology causes irreversible changes in the material that are visible on the fracture after breaking.
Material degradation of engineering components can occur when any of production technologies is applied.
The using of scanning electron microscopy (SEM), allowing simple and operational evaluation of micromorphology of fracture surfaces, brought huge development to the fractography science.
The flakes are occurring by acting of hydrogen content and high internal stress due to cooling of a material to the relative low temperatures.
Pietikeinen, Observations about tempered martensite embrittlement, Scandinavien journal of Metalurgy, 34, 2005, 1
Material degradation of engineering components can occur when any of production technologies is applied.
The using of scanning electron microscopy (SEM), allowing simple and operational evaluation of micromorphology of fracture surfaces, brought huge development to the fractography science.
The flakes are occurring by acting of hydrogen content and high internal stress due to cooling of a material to the relative low temperatures.
Pietikeinen, Observations about tempered martensite embrittlement, Scandinavien journal of Metalurgy, 34, 2005, 1
Online since: March 2021
Authors: Shu Ing Doh, Rokiah Othman, Ramadhansyah Putra Jaya, Chong Beng Wei, Noram Irwan Ramli, Xiao Feng Li
While studies of eggshell concrete or rubberized concrete are present, it is a new approach to replace both cement and sand with waste materials.
Many researches also attempted to derive a more accurate expression especially when replacement materials were involved [41-42].
(Sciences Eng., 62 (2013) 95–101
Strukar, Recycled rubber as an aggregate replacement in self-compacting concrete-literature overview, Materials (Basel)., 11 (2018)
Rashad, A comprehensive overview about recycling rubber as fine aggregate replacement in traditional cementitious materials, Int.
Many researches also attempted to derive a more accurate expression especially when replacement materials were involved [41-42].
(Sciences Eng., 62 (2013) 95–101
Strukar, Recycled rubber as an aggregate replacement in self-compacting concrete-literature overview, Materials (Basel)., 11 (2018)
Rashad, A comprehensive overview about recycling rubber as fine aggregate replacement in traditional cementitious materials, Int.
Online since: June 2019
Authors: Abderrahim Guittoum, David Martínez-Blanco, J.A. Blanco, Pedro Gorria, Nadia Boukherroub, Messaoud Hemmous, Nassim Souami
Introduction
Mechanical alloying (MA) technique is a powerful method for the elaboration of powdered nanostructured materials.
In the case of nanostructured ferromagnetic materials, if the cristallite size decreases down to the nanometric scale a change in the magnetic properties is frequently observed, which has been well explained by the random anisotropy model (RAM) [3, 4].
Shameli, Nanostructured soft magnetic materials synthesized via mechanical alloying: a review, J Mater Sci: Mater Electron, Journal of Materials Science: Materials in Electronics, 29(2), (2017) 1690–1717
Herzer, Nanocrystalline soft magnetic materials, J.
Graham, Introduction to Magnetic Materials, John Wiley and Sons, Inc., Hoboken, New Jersey, 2009
In the case of nanostructured ferromagnetic materials, if the cristallite size decreases down to the nanometric scale a change in the magnetic properties is frequently observed, which has been well explained by the random anisotropy model (RAM) [3, 4].
Shameli, Nanostructured soft magnetic materials synthesized via mechanical alloying: a review, J Mater Sci: Mater Electron, Journal of Materials Science: Materials in Electronics, 29(2), (2017) 1690–1717
Herzer, Nanocrystalline soft magnetic materials, J.
Graham, Introduction to Magnetic Materials, John Wiley and Sons, Inc., Hoboken, New Jersey, 2009