Academic literature on the topic 'Brittleness. Materials science'

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Journal articles on the topic "Brittleness. Materials science"

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Hao, Xianjie, Quansheng Xu, Dequan Yang, Shaohua Wang, and Yingnan Wei. "Effect of Bedding Angle and Confining Pressure on the Brittleness of Geomaterials: A Case Study on Slate." Advances in Materials Science and Engineering 2019 (March 25, 2019): 1–17. http://dx.doi.org/10.1155/2019/1650170.

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Brittleness is one of the most significant properties of geomaterials. However, very few studies have been conducted on factors influencing the rock brittleness indices. In this paper, conventional triaxial compression tests were carried out to investigate the effects of confining pressure and bedding angle on the brittleness of slate. From the perspective of energy, brittleness is an index that could reflect the release rate of energy that accumulated in the slate under the effect of external energy after reaching peak strength. Therefore, a new brittleness index of slate based on postpeak en
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Sehgal, J., Y. Nakao, H. Takahashi, and S. Ito. "Brittleness of glasses by indentation." Journal of Materials Science Letters 14, no. 3 (1995): 167–69. http://dx.doi.org/10.1007/bf00318244.

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Studart, André R. "Turning brittleness into toughness." Nature Materials 13, no. 5 (2014): 433–35. http://dx.doi.org/10.1038/nmat3955.

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Sealy, Cordelia. "Bulk metallic glasses overcome brittleness." Materials Today 10, no. 5 (2007): 13. http://dx.doi.org/10.1016/s1369-7021(07)70065-2.

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Wang, Chao, Qing Ping Cao, Xiao Dong Wang, et al. "Intermediate Temperature Brittleness in Metallic Glasses." Advanced Materials 29, no. 14 (2017): 1605537. http://dx.doi.org/10.1002/adma.201605537.

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Zhou, X. P., J. Bi, R. S. Deng, and B. Li. "Effects of Brittleness on Crack Behaviors in Rock-Like Materials." Journal of Testing and Evaluation 48, no. 4 (2018): 20170595. http://dx.doi.org/10.1520/jte20170595.

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Bhaduri, S. B. "Brittleness estimation of ceramic particulate composites." Materials Letters 4, no. 4 (1986): 211–13. http://dx.doi.org/10.1016/0167-577x(86)90099-6.

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Izumi, Osamu, and Takayuki Takasugi. "Mechanisms of ductility improvement in L12 compounds." Journal of Materials Research 3, no. 3 (1988): 426–40. http://dx.doi.org/10.1557/jmr.1988.0426.

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The present article first describes some characteristics of structure, chemistry, and electronic (bond) nature for grain boundaries in the A3B Li2-type intermetallic compounds. Next, the phenomenological aspects for the grain boundary brittleness of the Li2-type intermetallic compounds are reviewed with respect to the combination of the constituent atoms, the alloying effect, the stoichiometry effect, and a role of impurity or gaseous atoms. It is emphasized that the brittleness of grain boundaries in the intermetallic compounds is directly controlled by the atomistic and electronic structures
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Costa, Henrique W. Dalla, Rodrigo Coldebella, Fernanda R. Andrade, et al. "Brittleness increase in Eucalyptus wood after thermal treatment." International Wood Products Journal 11, no. 1 (2020): 38–42. http://dx.doi.org/10.1080/20426445.2020.1719298.

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Pirouz, P., M. Zhang, J.-L. Demenet, and H. M. Hobgood. "Transition from brittleness to ductility in SiC." Journal of Physics: Condensed Matter 14, no. 48 (2002): 12929–45. http://dx.doi.org/10.1088/0953-8984/14/48/335.

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Books on the topic "Brittleness. Materials science"

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Kim, Kyung-Suk, Michael P. Marder, Glenn E. Beltz, and Robin L. Blumberg Selinger. Fracture and Ductile vs. Brittle Behavior Vol. 539: Theory, Modelling and Experiment. University of Cambridge ESOL Examinations, 2014.

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(Editor), Glenn E. Beltz, R. L. Blumberg Selinger (Editor), Michael P. Marder (Editor), and K. S. Kim (Editor), eds. Fracture and Ductile Vs. Brittle Behavior-Theory, Modelling and Experiment: Symposium Held November 30-December 3, 1998, Boston, Massachusetts, U.S.A (Materials ... Society Symposia Proceedings, V. 539.). Materials Research Society, 1999.

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Nanoindentation of Brittle Solids. Taylor & Francis Group, 2014.

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Dey, Arjun, and Anoop Kumar Mukhopadhyay. Nanoindentation of Brittle Solids. Taylor & Francis Group, 2017.

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Book chapters on the topic "Brittleness. Materials science"

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RAWLINGS, REES D. "BRITTLENESS — A TOUGH PROBLEM." In Imperial College Inaugural Lectures in Materials Science and Materials Engineering. PUBLISHED BY IMPERIAL COLLEGE PRESS AND DISTRIBUTED BY WORLD SCIENTIFIC PUBLISHING CO., 2001. http://dx.doi.org/10.1142/9781848161740_0005.

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"Application of Biopolymeric Electrospun Nanofibers in Biological Science." In Materials Research Foundations. Materials Research Forum LLC, 2021. http://dx.doi.org/10.21741/9781644901076-7.

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Biopolymers are those class of macromolecules which are found in nature or extracted from the living organisms. Various structures and properties of the biopolymers-based materials are well researched till to date. These mainly includes hydrogels, bio glasses, bio inks, biocomposites, fibers and others. These biopolymers-based structures have some limitations. However, Biopolymers have some common advantages (i.e., non-toxicity, easy availability, monodispersity, degradability, and better solubility etc.) and disadvantages (i.e., poor thermal and chemical stabilities, brittleness etc.). To overcome these disadvantages, it is necessary to tailor these polymers by few emerging techniques like “Electrospinning”. Electrospinning is one of the easiest techniques to prepare nanofibers from polymeric solutions by applying high voltage. Obtained nano/micro structural polymeric fibers have good properties like high surface area, porosity and low weights etc. The materials having high surface area and porosity can easily interact with cells and tissues, are better mobile vehicles for drugs, as well as possess good filtration and adsorption abilities. Thus, these one-dimensional structures of the biopolymers are very useful in various fields of biomedical especially water sanitation/desalination, tissue engineering, drug delivery and scaffolds. Various biopolymers like chitosan, chitin, sodium alginate, guar gum, polylactic acid and others are successfully fabricated as fibers and used in various fields of biomedical.
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Conference papers on the topic "Brittleness. Materials science"

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Lu, C. P., H. Gao, R. K. Kang, X. J. Teng, and Q. G. Wang. "Ultra-Precision Machining Technology of the Soft and Brittle Functional Crystal." In ASME 2008 International Manufacturing Science and Engineering Conference collocated with the 3rd JSME/ASME International Conference on Materials and Processing. ASMEDC, 2008. http://dx.doi.org/10.1115/msec_icmp2008-72059.

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As an important branch of materials, soft and brittle functional crystals (SBFC) are widely used in the field of modern technology. However, the softness, brittleness, deliquescence, and strongly anisotropic natures of these materials present a challenge for their ultra-precision machining. The definition of SBFC is firstly given and their applications in many fields are also presented. For the ultra-precision machining technologies to satisfy the applied requirements, many methods such as single diamond turning, ultra-precision grinding, magnetorheological Finishing and so on, are successfull
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Yu, Emily, and Lih-Sheng Turng. "Prediction of Mechanical Properties of Microcellular Plastics Using the Variational Asymptotic Method for Unit Cell Homogenization (VAMUCH) Method." In ASME 2013 International Manufacturing Science and Engineering Conference collocated with the 41st North American Manufacturing Research Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/msec2013-1254.

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This work presents the application of the micromechanical variational asymptotic method for unit cell homogenization (VAMUCH) with a three-dimensional unit cell (UC) structure and a coupled, macroscale finite element analysis for analyzing and predicting the effective elastic properties of microcellular injection molded plastics. A series of injection molded plastic samples — which included polylactic acid (PLA), polypropylene (PP), polystyrene (PS), and thermoplastic polyurethane (TPU) — with microcellular foamed structures were produced and their mechanical properties were compared with pred
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Mohammadi, Hossein, and John A. Patten. "Anisotropy Effect on Cutting Monocrystal Sapphire by Micro-Laser Assisted Machining Technique." In ASME 2016 11th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/msec2016-8652.

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Machining of hard and brittle materials such as ceramics and semiconductors has been a challenge for many years. They have many applications in optics, MEMS and electronic industries due to their many desirable properties, such as being light weight, strong, and hard. Achieving good surface finish, avoiding surface and subsurface damage and at the same time achieving a high material removal rate are extremely challenging for these materials. Materials such as single crystal silicon and sapphire have a crystal orientation or anisotropy effect which makes their machining even more difficult. Bec
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Rashid, Asif, Muhammad P. Jahan, Asma Perveen, and Jianfeng Ma. "Machining of Through Holes in Non-Conductive Aluminum Nitride Ceramic Using Electrical Discharge Machining Process." In ASME 2020 15th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/msec2020-8359.

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Abstract Ceramic materials are known for their high hardness and strength-to-weight ratio, resistance to wear, and chemical inertness. These materials can be deployed at elevated temperature even to the limit where super alloys cannot be used. The distinctive properties of ceramics make them difficult to machine by conventional processes because of their brittleness. Electrical discharge machining (EDM) is a non-contact machining process that can machine any workpiece irrespective of its hardness, as long as the material is electrically conductive. Therefore, the challenge that comes with the
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Hu, Yingbin, Hui Wang, Fuda Ning, Weilong Cong, and Yuzhou Li. "Surface Grinding of Optical BK7/K9 Glass Using Rotary Ultrasonic Machining: An Experimental Study." In ASME 2017 12th International Manufacturing Science and Engineering Conference collocated with the JSME/ASME 2017 6th International Conference on Materials and Processing. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/msec2017-2780.

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BK7/K9 glass is regarded as a difficult-to-machine material due to its high hardness and high brittleness properties as well as high tool wear rate during machining. Facing to these challenges, an efficient and effective rotary ultrasonic machining (RUM) process, consisting of grinding process and ultrasonic machining process, was provided to process BK7/K9 glass. In this investigation, the effects of ultrasonic power on cutting forces, torque, and edge chipping of surface grinding in RUM of BK7/K9 glass were studied. Results showed that, by introducing ultrasonic vibration to surface grinding
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Rong, Zhicheng, Chang Liu, and Yingbin Hu. "4D Printing of Complex Ceramic Structures via Controlling Zirconia Contents and Patterns." In ASME 2021 16th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/msec2021-63642.

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Abstract In recent years, more and more attentions have been attracted on integrating three-dimensional (3D) printing with fields (such as magnetic field) or innovating new methods to reap the full potential of 3D printing in manufacturing high-quality parts and processing nano-scaled composites. Among all of newly innovated methods, four-dimensional (4D) printing has been proved to be an effective way of creating dynamic components from simple structures. Common feeding materials in 4D printing include shape memory hydrogels, shape memory polymers, and shape memory alloys. However, few attemp
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Bakir, Barkin, Hossein Mohammadi, and John A. Patten. "Ductile Regime Scratching of a Rock Sample in a Laser Assisted Machining Technique." In ASME 2017 12th International Manufacturing Science and Engineering Conference collocated with the JSME/ASME 2017 6th International Conference on Materials and Processing. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/msec2017-2758.

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Rocks are playing an important role in the life of mankind since ancient times. One of the most significant characteristics of the rocks is their brittleness, which makes them exhibit a very poor machinability and usually severe fracture results during machining. In this paper, Micro-Laser Augmented Machining (μ-LAM) technique is applied on scratching a commercial rock, Gabbro-Labradorite, which is a composite of grained natural minerals such as feldspar, magnetite and mica. In the μ-LAM process, a laser is used to locally heat and thermally soften the materials below the scratching tool durin
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Azeredo, Bruno, Keng Hsu, and Placid Ferreira. "Direct Electrochemical Imprinting of Sinusoidal Linear Gratings Into Silicon." In ASME 2016 11th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/msec2016-8835.

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Silicon is an excellent transparent material for building IR micro-optical elements such as holographic and blazed gratings, and curvilinear micro-lenses. Shaping this material in 3D with mirror quality finish and single-digit microscale resolution is challenging due to its brittleness and high-melting point. To achieve these patterning characteristics, electron-beam grayscale lithography is typically selected to pattern a 2.5D feature onto a resist thin-film. Subsequently, the film features are transferred into the underlying silicon substrate by deep-reactive ion etching (DRIE) [1]. Small va
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Ravindra, Deepak, Surya Chaitanya Ponthapalli, and John Patten. "Micro-Laser Assisted Feasibility Test on Soda-Lime-Glass." In ASME 2013 International Manufacturing Science and Engineering Conference collocated with the 41st North American Manufacturing Research Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/msec2013-1200.

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Soda lime glassis the most prevalent type of glass, used for glass containers and windowpanes. It is difficult to machine in traditional manufacturing processes due to its extreme hardness and brittleness. Good optical quality surfaces can be achieved by removing the material in a ductile manner. The strength, hardness and fracture toughness of the workpiece material are the governing factors that control the extent of brittleness. The main goal of the subject research is todetermine the effect of laser heating (using the μ-LAM process) on the material removal of sodalime glass using a single
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Song, Huawei, Junfeng Xiao, Jialun Li, Jinqi Dan, Xiao Chen, and Jianfeng Xu. "Machining of Fused Silica Using Pulsed Laser Heating Assistance." In ASME 2018 13th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/msec2018-6359.

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Fused silica is difficult to machine through conventional machining, mainly due to its high brittleness and strength, low fracture toughness and poor plastic deformation. This study was attempted to explore the machinability of fused silica with laser-assisted machining by heating workpiece through a pulse CO2 laser beam. During the LAM of fused silica, the bonding and wavelike texture on the machined surface indicated the behavior change of material deformation by the local heating in front of the cutting tool. The semi-continuous chips were obtained as an evidence of material removal mechani
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