Curriculum Vitaes
Profile Information
- Affiliation
- Professor, Faculty of Science and Technology, Department of Engineering and Applied Sciences, Sophia University
- Degree
- 博士（工学）(工学院大学)
- Contact information
- hisamori
sophia.ac.jp - Researcher number
- 80317510
- J-GLOBAL ID
- 200901033684274272
- researchmap Member ID
- 1000293757
1999－ •Department of Engineering and Applied Science, Faculty of Science and Technology, Sophia Univers, Structional and functional biomaterials
1999－ •Department of Engineering and Applied Science, Faculty of Science and Technology, Sophia Univers, Environmental strength and furacture strenngth
In late years aging in my country lets affection of motor function such as osteoporosis by alteration such as a bone or articular cartilage, osteoarthritis of spine, osteoarthritis increase. Therefore be aimed for improvement of rich quality of life in health, and the living habits that took in sports are spreading broadly. However, with increase and aging of the action population, locomotorium injury such as a fracture, ligamentous breakdown, a cartilage injury increases again, too. A treatment of such a locomotorium disorder is one of a future medical problem. It is important to return attribute of locomotorium, configuration, a physical characteristic to an as possible original physiological state.
I study organism material replacing it in a bone, cartilage, band, arthrosis.
Study in particular medicine and science and technology studies from a confluent point of view.
(Subject of research)
JSPS Research for the Future Program
Fatigue characteristic evaluation of bio-titanium alloy
Effects of Mechanical Stress on Corrosion Resistance of Metallic Biomaterials
Evaluation of corrotion wear of Co-Cr alloy
Fatigue characteristic evaluation of beta-bio-titanium alloy
Influence of surface modification of bio metal material cause to organism
Fracture characteristic of bio-apatite ceramics
HAP Ceramics and HAP layer Formed on It's Surface in a Simulated Body Fluid
Preparation and bio-function evaluation of organic - inorganic hybrid bio composites
Construction of fatigue life improvement by surface treatment technology of titanium alloy for medical cares
Fatigue characteristics evaluation of β type titanium alloy having a notch
Fatigue characteristics evaluation of titanium alloy having a hole
Fatigue characteristics evaluation of SUS316L steel having a hole
Evaluation of Fatigue Characteristic of Ti-6Al-4V alloy shaped by Metal Powder Layered Method
Evaluation of fatigue properties of electron beamed and laser peened Ti-6Al-4V ELI alloy
Evaluation of 4-point Bending Fatigue Properties for Titanium Alloy Interlocking Nail
Effect of notch factor on torsional fatigue property of pure titanium and stainless steel
Evaluation of corrosion wear characteristics of biomedical Co-Cr alloy with a surface modification by ELID grinding
Evaluation of corrosion fatigue properties of pre-strained SUS316 and SUS304 steel
Effect of notches on fatigue properties of β titanium alloy
Proposal of evaluation method of adhesion strength of apatite films deposited on titanium alloy
Evaluation of fatigue characteristic of titanium alloy by shot-peening
Evaluating of corrosion wear resistance of Co-Cr alloy with designed surface by scratch
Investigation on Bad Fit of Locking Plate for Osteosynthesis
Evaluation of shear adhesion strength of titanium alloy coated with apatite thin film
Evaluation of bending fatigue properties of three-dimensional modeling titanium alloy subjected to surface modification process
Fabrication of artificial bone by reef-building coral and its characteristics
Evaluation of the torsional fatigue characteristics of the titanium alloy
Evaluation of fretting fatigue properties of titanium alloy
Evaluation of fatigue characteristic of Pure titanium alloy by shot-peening
Influence of simulated body fluid on the interface strength test of apatite coating titanium
Evaluation of the corrosion characteristics of the injection molding machine for SKD61 material
Fatigue strength of pure titanium which has been subjected to shot peening and its mechanism
Evaluation of load applied to the knee brace with a link mechanism
Evaluation of corrosive wear characteristics of the titanium-based metal material that has been subjected to surface design
Torsional fatigue characterization of surface-modified 3D modeling titanium alloy
Evaluation of the fatigue characteristics of the 3D layered manufacturing cobalt chromium alloy
Examination of the low profile of the spinal implant
Influence of microstructure on the fatigue properties of pure titanium employing severe plastic deformation for grain refinement.（
Evaluation of interfacial strength in thin-film coating material for medical use
Evaluation of the distal fixing strength of the intramedullary nail implant
Effect of strength due to laser marking to medical titanium material
Development of lower limb muscle strength measurement equipment
Evaluation of fretting fatigue characteristics of the different medical metal material
Evaluation of torsional fatigue characteristics of the β titanium alloy
(Proposed theme of joint or funded research)
Mechanics characteristics evaluation of medical material
Research Interests
29Research Areas
5Research History
4-
Apr, 2011 - Mar, 2012
-
Oct, 2009 - Mar, 2010
-
Sep, 2009 - Mar, 2010
-
Apr, 2004 - Mar, 2009
Committee Memberships
16-
Jun, 2012 - Mar, 2014
-
Apr, 2012 - Mar, 2014
-
Aug, 2011 - Aug, 2013
-
May, 2011 - May, 2013
-
Oct, 2011 - Mar, 2012
Awards
24-
Mar, 2024
Papers
112-
First Biennial Meeting of The European Tissue Engineering Society International(ETES), 2001
-
Journal of Material Research Association of JAPAN, 45(2) 370-376, Apr, 2000
-
The proceedings of the JSME annual meeting, 2000 237-238, 2000The number of aged person is increasing having a disease for bone, tooth, and innards. So the necessity of these substitute materials must be increasing. Alumina ceramics are used for substitute materials as bonehead of a thighbone joint, because of its high strength and bioinert properties. For many biomaterials a fracture occurs due to both corrosion and fatigue. In this study, effects of similar body fluid (SBF) environment on mechanical properties and microstructure of Al_2O_3 were investigated. Microstructural changes of Al_2O_3 ceramics due to SBF corrosion degradation were also examined by SEM after long time immersion into SBF at 37℃. Degradation of bending strength and fracture toughness (K_C) were evaluated.
-
Zairyo/Journal of the Society of Materials Science, Japan, 48(3) 275-281, 1999The influences of ZrO2 particle addition upon improvement in mechanical properties of Al2O3 ceramics and their degradation due to a deionized water environment under high temperature and high pressure were investigated in terms of the microstructural changes and residual strength characteristics. Sintered Al2O3 bodies containing, 3.3, 10.2, 21.7vol.% of 3mol% Y2O3-doped tetragonal ZrO2 were made using a pressureless sintering process at 1550, 1600, 1650 °C, respectively. These ceramic composites were corroded in deionized water under its equilibrium vapor pressure of 1.59 MPa at 200 °C. The effects of microstructure upon mechanical properties of Al2O3/ZrO2 composites were studied for the specimens treated with, and not treated with water under high temperature and pressure, by residual bending strength measurement, FE-SEM with EDX spectrometry observation and XRD and FE-TEM structural analysis. The mechanical properties were found to be superior when specimens were 21.7vol.% of ZrO2 contents and sintered at 1550 °C. It was shown that the strength degradation due to the corrosion by deionized water molecule was suppressed in the case of the specimens with higher contents of ZrO2 particles sintered at lower temperatures. The correlation between bending strength scatter and microstructural defects was discussed.
-
PROGRESS IN MECHANICAL BEHAVIOUR OF MATERIALS (ICM8), VOL 3, 3 987-992, 1999The influence of zirconia particle addition upon improvement in the high temperature mechanical strength properties of alumina was investigated. Submicrometer polycrystalline alpha -Al2O3 powder and the mixed powders of ZrO2 3mol% Y2O3 were used as starting material. Sintered Al2O3 bodies with 5, 15, and 30wt.% 3mol% Y2O3 doped tetragonal ZrO2 were made by pressureless sintering method at 1500, 1550, 1600 and 1650 degrees C, respectively. Three-point high temperature bending strength tests were conducted on smooth specimens of Al2O3/ZrO2 composites at room and elevated temperatures. In order to clarify the temperature dependence of fracture strength of sintered Al2O3/ZrO2 composites, the fracture strength tests were carried out under three point bending condition at the temperature range up to 1000 degrees C in air. And also, changes in high temperature mechanical strength properties and microstructure of Al2O3/ZrO2 composites depending upon ZrO2 contents and sintered temperature were studied. And, Effect of ZrO2 contents and sintered temperature upon high temperature dependence of fracture strength of Al2O3/ZrO2 composites. And the detailed observation of fracture surface of the smooth specimens by FE-SEM was carried out in order to specify the defect morphology as the fracture site and to study the relation between defect size and flexural strength at room and elevated temperatures.
-
Proceedings of the International Conference on Damage and Fracture Mechanics, 605-614, 1998The influence of zirconia particle addition upon improvement in mechanical properties of alumina and its degradation by deionized water corrosion was investigated. Submicrometer polycrystalline α-Al2O3 powder and the mixed powders of Al2O3-3 mol% Y2O3 were used as starting material. Sintered Al2O3 bodies with 5, 15 and 30 wt.% 3 mol% Y2O3 doped tetragonal ZrO2 were made pressureless sintering method at 1550, 600 and 1650 °C, respectively. These ceramic composites were corroded in room temperature deionized water at 30 °C. The effects of microstructure upon mechanical properties of Al2O3/ZrO2 ceramic composites was studies by bending strength fracture toughness, scanning electron microstructure observation and the structural analysis by XRD before and after deionized water molecule corrosion. The mechanical properties were found to be superior when ZrO2 content of specimen was 30 wt.% and sintered at 1550 °C. It was shown that the strength degradation deionized water molecule corrosion was suppressed with in case of the specimens increasing ZrO2 particle content and lowering sintered temperature.
-
Transactions of the Japan Society of Mechanical Engineers. A, 63(612) 1688-1693, Aug, 1997High temperature and high pressure water corrosion behaviors of ZrO2-particle-dispersed Al2O3 composites were investigated in terms of with the microstructural changes and residual strength characteristics. Sintered Al2O3 bodies with 5, 15, and 30 wt.% 3 mol% Y2O3-doped tetragonal ZrO2 were made using a pressureless sintering method at 1 550. 1 600 and 1 650°C, respectively. These Al2O3/ZrO2 ceramic composites were corroded in high temperature and high pressure deionized water at 200°C∼300°C. Corrosion damage of the Al2O3/ZrO2 ceramic composites occurred preferentially on ZrO2 particles after long-term immersion in deionized water. The tetragonal to monoclinic phase transformation occurred in yittria-doped tetragonal ZrO2 polycrystals due to high temperature and high pressure deionized water corrosion. For improvement of the corrosion characteristics of the composites, are important increasing the ZrO2 content within a range in which no remarkable residual strength degradation is recognized and lowering of the sintering temperature. Al2O3/ZrO2 ceramic composites also have superior residual strength characteristics compared to monolithic ZrO2 ceramics. The residual strength characteristics are improved by increasing the ZrO2 particle concentration. and loweringthe sintering temperature. The fracture surface morphology change from transgranular to intergranular was brought about by increasing the ZrO2 content. Improvement in residual strength characteristics of Al2O3/ZrO2 composites was realized. due to intergranular crack propagation, crack pinning caused by remarkable grain bridging by Al2O3 and stress-induced transformation from tetragonal ZrO2 to stable monoclinic in the vicinity of the crack tip. Then, the necessary manufacturing conditions for sustaining the improved strength characteristics after high pressure and high temperature water immersion were clarified. In addition design concepts used to obtain water-corrosion-resistant high strength and high toughness particle dispersed ceramic composites were proposed.
-
ADVANCES IN FRACTURE RESEARCH, VOLS 1-6, 1113-1118, 1997The influence of ZrO2 particle addition for the improvement in the bending strength of alumina was investigated. Sintered Al2O3 bodies with 5, 15, and 30wt.% 3 mol% Y2O3 doped tetragonal ZrO2 were made by pressureless sintering method at 1550, 1600 and 1650 degrees C, respectively These, Al2O3/ZrO2 ceramics composites were corroded in high temperature and high pressure deionized water at 200 degrees C similar to 300 degrees C. The bending strength characteristics were found to be superior when ZrO2 content of specimen was 30wt% and sintered at 1550 degrees C. It was shown that the strength degradation was suppressed with increasing ZrO2 particle content, and lowering sintered temperature.
-
Correlation between Microstructure and Strength Characteristics of Z_rO_2-Particle-Dispersed Al_2O_3Transactions of the Japan Society of Mechanical Engineers. A, 62(596) 908-914, Apr, 1996
-
Proc. Of the 6th Int. Fatigue. Conf., 3 1705-1710, 1996
-
Abs. of 7th Int. Conf. on Mechanical Behavior of Materials., 653-654, 1995
Misc.
57-
2016(69) 115-116, Mar 15, 2016
-
2015 "GS0607-427-1"-"GS0607-427-3", Nov 21, 2015Barrel, nozzle and screw are plasticization parts of injection molding machines that works under high processing temperature. These parts are also exposed to corrosive gas and acid environment came from molten plastics. These combined factors cause considerable corrosion damage on plasticization parts. Furthermore, frictions with glass-filled polymers in molten plastic give rise to wear damages simultaneously on plasticization parts. In this study, the electrochemical test has been conducted on SKD61 specimens in the solute H_2SO_4 dissolving nylon66-25wt.% fiberglass. It was found that oxide film formation was promoted due to the oxidation reaction between SKD61 surface and the solution while the regenerative ability of the oxide film of SKD61 was deteriorated. The corrosion wear test was also conducted by using Alumina ceramics ball on SKD61 disk specimens. Destruction of the oxide film of SKD61 due to friction was confirmed. The regenerative ability of oxide film was also verified in the test.
-
2015 "OS1313-426-1"-"OS1313-426-3", Nov 21, 2015Shot peening (SP) is one of the surface modification technologies to enhance fatigue strength. In this study, the mechanism of enhancement of bending fatigue property of shot peened pure titanium (JIS 2) was investigated. Surface roughness, vickers hardness of surface and subsurface, and bending fatigue strength was measured. Surface roughness and hardness of surface and subsurface were increased by SP. The bending fatigue strength was increased highly by SP because increasing of hardness effected more greatly than increasing of surface roughness. The maximum of amount of increase 2.7 times in 10^7 cycles. It was found that the bending fatigue strength was increased by increasing of hardness of surface and subsurface by SP. Therefore, it is obvious that fatigue strength of pure titanium is increased highly by SP.
-
2015 "OS1314-447-1"-"OS1314-447-3", Nov 21, 2015Torsion fatigue tests were conducted for circumferentially notched bars specimens of Ti-6Al-4V alloy to evaluate fatigue strength. The notch sensitivity was studied by using blunt (stress concentration factor Kt=2.0) and sharp (Kt=4.0) notched specimens. The number of cycles to failure was obtained and the crack initiation life was estimated from the applied torque to the specimens. The number of cycles to failure and fatigue strength decreased with increasing the value of stress concentration factor. When compared at the same fatigue life, the crack initiation life of Kt=4.0 specimen was much shorter than that of Kt=2.0. The crack propagation behaviors were analyzed by observing fractured surface. When stress amplitude is low, the tensile crack propagated toward a 45° direction of the longitudinal axis of the specimen, while under high stress amplitude, the shear crack propagated in the circumferential direction both in blunt and sharp notched specimens forming flat fracture surface. The fracture surface showed factory-roof pattern under middle stress amplitude. The angle of a fracture plane of the blunt notch under low stress amplitude was 45° to the axial direction. The formation of factory-roof may increase contact areas in the fractured surface, thus increase crack propagation life.
Books and Other Publications
6-
Japan Institute of Metals and Materials, Oct, 2014 (ISBN: 9784889030761)
-
Jul, 2013 (ISBN: 9784890447725)
Presentations
33Professional Memberships
16Research Projects
22-
教育研究資金, 公益社団法人軽金属奨学会, Apr, 2022 - Mar, 2024
-
Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Apr, 2019 - Mar, 2022
-
Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C), Japan Society for the Promotion of Science, Apr, 2016 - Mar, 2019
-
Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C), Japan Society for the Promotion of Science, Apr, 2013 - Mar, 2016
-
Grants-in-Aid for Scientific Research Grant-in-Aid for Young Scientists (B), Japan Society for the Promotion of Science, 2010 - 2012
Industrial Property Rights
7Social Activities
5Other
22-
Sep, 2018 - Sep, 2018これから疲労設計に携わろうとする若手技術者，新たに耐疲労設計を必要とする技術者や疲労研究を従事する大学院生など，いわゆる疲労に関する初心者を対象に，疲労の基礎的知識から具体的な設計の初歩を講述する講習会
-
Aug, 2017 - Aug, 2017これから疲労設計に携わろうとする若手技術者，新たに耐疲労設計を必要とする技術者や疲労研究を従事する大学院生など，いわゆる疲労に関する初心者を対象に，疲労の基礎的知識から具体的な設計の初歩を講述する講習会
-
Sep, 2016 - Sep, 2016これから疲労設計に携わろうとする若手技術者，新たに耐疲労設計を必要とする技術者や疲労研究を従事する大学院生など，いわゆる疲労に関する初心者を対象に，疲労の基礎的知識から具体的な設計の初歩を講述する講習会
-
Aug, 2015 - Sep, 2015これから疲労設計に携わろうとする若手技術者，新たに耐疲労設計を必要とする技術者や疲労研究を従事する大学院生など，いわゆる疲労に関する初心者を対象に，疲労の基礎的知識から具体的な設計の初歩を講述する講習会