Academic literature on the topic 'Compositionally graded materials'

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Journal articles on the topic "Compositionally graded materials"

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Coco, Lorenzo, Florent Lefevre-Schlick, Olivier Bouaziz, Xiang Wang, J. K. Solberg, and David Embury. "The mechanical response of compositionally graded materials." Materials Science and Engineering: A 483-484 (June 2008): 266–69. http://dx.doi.org/10.1016/j.msea.2006.12.164.

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Torrecillas, R. "Compositionally graded zirconia-molybdenum materials without residual stress." Metal Powder Report 57, no. 6 (2002): 54. http://dx.doi.org/10.1016/s0026-0657(02)80261-2.

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Zhong, S., S. P. Alpay, Z. G. Ban, and J. V. Mantese. "Effective pyroelectric response of compositionally graded ferroelectric materials." Applied Physics Letters 86, no. 9 (2005): 092903. http://dx.doi.org/10.1063/1.1866505.

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Chéhab, Béchir, Hatem Zurob, David Embury, Olivier Bouaziz, and Yves Brechet. "Compositionally Graded Steels: A Strategy for Materials Development." Advanced Engineering Materials 11, no. 12 (2009): 992–99. http://dx.doi.org/10.1002/adem.200900180.

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Popa, Monica, José-Maria Calderón Moreno, Pavol Hvizdoš, Raúl Bermejo, and Guy Anné. "Residual Stress Profile Determined by Piezo-Spectroscopy in Alumina/Alumina-Zirconia Layers Separated by a Compositionally Graded Intermediate Layer." Key Engineering Materials 290 (July 2005): 328–31. http://dx.doi.org/10.4028/www.scientific.net/kem.290.328.

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In order to understand the mechanical behavior of layered composites with compositional gradient, it is necessary to determine their state of residual stresses. Compositionally graded materials can offer the advantage of eliminating abrupt changes in composition between layers having different thermal expansion coefficients. The existence of a compositional gradient may reduce discontinuities in thermal residual stresses, something beneficial from the point of view of the mechanical properties. We present here a study of the state of the residual stresses in a layered material made of thicker
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Wu, Jiagang, John Wang, Dingquan Xiao, and Jianguo Zhu. "Compositionally graded bismuth ferrite thin films." Journal of Alloys and Compounds 509, no. 35 (2011): L319—L323. http://dx.doi.org/10.1016/j.jallcom.2011.05.076.

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Suresh, S., A. E. Giannakopoulos, and J. Alcalá. "Spherical indentation of compositionally graded materials: Theory and experiments." Acta Materialia 45, no. 4 (1997): 1307–21. http://dx.doi.org/10.1016/s1359-6454(96)00291-1.

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Kim, Yeon-Wook, Tae-Hyun Nam, and Seong-Min Lee. "Martensitic Transformation Behaviors of Compositionally Graded Ti–Ni-Based Shape Memory Alloys." Science of Advanced Materials 12, no. 10 (2020): 1586–90. http://dx.doi.org/10.1166/sam.2020.3802.

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In this study, we demonstrate a simple and effective way to fabricate functionally graded TiNi-based alloys with linear variations of composition and martensitic transformation behavior. Ti50Ni50 and Ti50Ni35Cu15 alloy strips were fabricated through a melt overflow process. The compositionally graded diffusion couple was fabricated by annealing two strips of different alloy compositions after being placed face to face in a pressing graphite mold. The mechanical properties and martensitic transformation behaviour of the diffusion couple were analysed by tensile test and DSC. The compositionally
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Peka, H. P., D. A. Pulemyotov, and M. P. Verkhovodov. "Compositionally graded semiconductors with intervalley crossover." Semiconductor Science and Technology 8, no. 8 (1993): 1517–22. http://dx.doi.org/10.1088/0268-1242/8/8/006.

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Klic, A., and M. Marvan. "Pseudo-spin model of compositionally graded ferroelectrics." Phase Transitions 79, no. 6-7 (2006): 493–503. http://dx.doi.org/10.1080/01411590600892377.

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Dissertations / Theses on the topic "Compositionally graded materials"

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Jandl, Adam Christopher. "III-V compositionally graded buffers for heterostructure integration." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/98164.

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Thesis: Ph. D. in Electronic, Photonic, and Magnetic Materials, Massachusetts Institute of Technology, Department of Materials Science and Engineering, 2015.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 120-125).<br>InyGa₁-yAs alloys are critical in commercial applications such as high speed transistors, light emitting diodes, solid state lasers, photovoltaics, and photo-detectors. However, the range of compositions used in these applications is often limited to the range of InyGa₁-yAs compositions which are lattice matched to elementary or binary semi
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Goh, Johnathan Jian Ming. "Commercialization potential of compositionally graded Ge - Si₁₋x̳Gex̳ - Si substrates for solar applications." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/38550.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2006.<br>In title on t.p., double-underscored "x" appears as subscript.<br>Includes bibliographical references.<br>This project considers the potential of Ge - Si₁₋x̳Gex̳ - Si substrates for solar applications. The use of compositionally graded substrates to achieve heterointegration across different materials platforms such as Si, Ge and GaAs has proven successful and dual junction solar cells have been fabricated on such substrates. The potential for graded substrates in the solar market is d
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Curnis, Agathe. "Évolution métallurgique et corrosion à haute température de matériaux à gradient de composition élaborés par procédé Laser Metal Deposition - powder." Electronic Thesis or Diss., Bourgogne Franche-Comté, 2024. http://www.theses.fr/2024UBFCK018.

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Les matériaux à gradient de composition présentent de nombreux avantages et notamment celui d’adapter localement le matériau en fonction de la sollicitation perçue par la pièce tout en limitant les risques d’incompatibilités entre les matériaux. Ce travail de thèse s’est concentré sur la réalisation d’un système de matériaux à gradient de composition par procédé Laser Metal Deposition-powder à partir d’un substrat en acier faiblement allié jusqu’à un alliage 625. Ce système multi-matériaux devant présenter une bonne tenue à la corrosion à haute température, son comportement à 800 et 650°C sous
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Thomas, Jonova. "Microstructural Phase Evolution In Laser Deposited Compositionally Graded Titanium Chromium Alloys." Thesis, University of North Texas, 2016. https://digital.library.unt.edu/ark:/67531/metadc849610/.

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A compositionally graded Ti-xCr (10≤x≤30 wt%) alloy has been fabricated using Laser Engineered Net Shaping (LENSTM) to study the microstructural phase evolution along a compositional gradient in both as-deposited and heat treated conditions (1000°C followed by furnace cooling or air cooling). The alloys were characterized by SEM BSE imaging, XRD, EBSD, TEM and micro-hardness measurements to determine processing-structure-property relations. For the as-deposited alloy, α-Ti, β-Ti, and TiCr2 (C15 Laves) phases exist in varying phase fractions, which were influential in determining hardness value
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Daugherty, Timothy J. "Assessment of the ballistic performance of compositional and mesostructural functionally graded materials produced by additive manufacturing." Youngstown State University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1596474811965998.

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Ramirez, Cadavid David A. "Development of Processes for the Extraction of Industrial Grade Rubber and Co-Products from the Roots of Taraxacum kok-saghyz (TK)." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1512060296142347.

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Book chapters on the topic "Compositionally graded materials"

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Watanabe, Yoshimi, Shin Oike, and Ick Soo Kim. "Formation of Compositional Gradient during Fabrication of FGMs by a Centrifugal In Situ Method." In Functionally Graded Materials VIII. Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-970-9.693.

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Nakano, J., K. Fujii, and R. Yamada. "Thermal diffusivity measurement for SiC/C compositionally graded graphite materials." In Functionally Graded Materials 1996. Elsevier, 1997. http://dx.doi.org/10.1016/b978-044482548-3/50072-x.

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"3. Advanced manufacturing of compositionally graded composite materials: An overview." In Hierarchical Composite Materials. De Gruyter, 2018. http://dx.doi.org/10.1515/9783110545104-003.

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Joseph, Jithin. "Direct Laser Fabrication of Compositionally Complex Materials." In Advances in Civil and Industrial Engineering. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-4054-1.ch008.

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Additive manufacturing (AM) opens up the possibility of a direct build-up of components with sophisticated internal features or overhangs that are difficult to manufacture by a single conventional method. As a cost-efficient, tool-free, and digital approach to manufacturing components with complex geometries, AM of metals offers many critical benefits to various sectors such as aerospace, medical, automotive, and energy compared to conventional manufacturing processes. Direct laser fabrication (DLF) uses pre-alloyed powder mix or in-situ alloying of the elemental powders for metal additive man
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Pettermann, H. E., E. Weissenbek, and S. Suresh. "Simulation of the Elasto–Plastic Deformations in Compositionally Graded Metal–Ceramic Structures: Mean–Field and Unit Cell Approaches**This work was supported by the Grant DE-FG02-93ER45506 to MIT from the US Department of Energy. The post–doctoral study of EW at MIT was supported by an Erwin Schrödinger Fellowship from the AUSTRIAN NATIONAL SCIENCE FOUNDATION. HP’s visit to MIT was supported by a scholarship for Overseas Scientific Study from the AUSTRIAN FEDERAL MINISTRY OF SCIENCE, TRANSPORT AND ART." In Functionally Graded Materials 1996. Elsevier, 1997. http://dx.doi.org/10.1016/b978-044482548-3/50014-7.

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Pakseresht, Amir Hossein, M. R. Rahimipour, M. Alizadeh, S. M. M. Hadavi, and A. Shahbazkhan. "Concept of Advanced Thermal Barrier Functional Coatings in High Temperature Engineering Components." In Research Perspectives on Functional Micro- and Nanoscale Coatings. IGI Global, 2016. http://dx.doi.org/10.4018/978-1-5225-0066-7.ch015.

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In conventional thermal barrier coatings (TBCs) the major problem is the spalling of a ceramic coating. This could be due to the large thermal stresses which are generated during thermal cycling on the oxidizing environment. One of the ways to improve the life span and overcome mentioned problems is introducing the concept of functionally graded materials (FGM) into the TBC. Functionally graded materials are referred to as a class of advanced materials that are distinguished by variation in their properties with varying their dimensions. Through employing a functionally graded thermal barrier
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Fracchia, Elisa, and Mario Rosso. "Development and Characterization of New Functionally Graded Aluminium Alloys." In Aluminium Alloys - Design and Development of Innovative Alloys, Manufacturing Processes and Applications [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.101022.

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Nowadays, aluminium alloys are adopted mainly to produce engineering and automotive components. The present investigation aims to design, cast and characterize novel functionally graded materials (FGMs) produced using Al-Mg and Al-Si alloys by gravity casting technique. Alloys were sequentially cast into a mould to obtain an FGM to realizing great mechanical and metallurgical bonding. Zn addition was further performed in FGM to increase the mechanical properties, thanks to the nucleation of the intermetallic phases MgZn2. Castings were subsequently mechanically tested by tensile tests, bending
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Davis Selena, Abidi Syed Sibte Raza, and Stewart Sam. "A Compositional Personalization Approach for Designing Personalized Patient Educational Interventions for Cardiovascular Risk Management." In Studies in Health Technology and Informatics. IOS Press, 2010. https://doi.org/10.3233/978-1-60750-588-4-629.

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Providing patients with personalized educational messages can improve self-management of Cardiovascular Disease (CVD) risk factors. We present our compositional personalization approach that generates personalized educational material by dynamically selecting fine-grained information snippets, as per the patient profile, and then synthesizing them in a educational template to yield personalized patient education interventions. We apply our personalization approach in the PULSE system &amp;ndash; Personalization Using Linkages of SCORE and behavior change readiness to web-based Education &amp;n
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Fan, Xuefei, Xu Chu, Wentao Cao, and Yi Zou. "Local rapid exhumation during the long-lived Grenville orogeny." In Laurentia: Turning Points in the Evolution of a Continent. Geological Society of America, 2022. http://dx.doi.org/10.1130/2022.1220(18).

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ABSTRACT The Grenville Province is the largest and most structurally complex orogenic belt that formed in the Mesoproterozoic, representing the amalgamation of the supercontinent Rodinia. The Mattawa domain, part of the Algonquin domain in Ontario, Canada, hosts some of the most deeply buried metamorphic rocks of this orogen. This high-grade metamorphic terrane consists of large areas of felsic orthogneiss and kilometer-sized mafic boudins. Dark-colored metabasite cropping out near Mattawa, Ontario, Canada, contains relict mineral assemblages and decompression textures indicative of high-press
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Conference papers on the topic "Compositionally graded materials"

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Zhang, Xinyue, Minhan Mi, Pengfei Wang, and Xiang Du. "Simulation analysis on the linearity of compositionally-graded III-N HEMTs." In 2024 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP). IEEE, 2024. https://doi.org/10.1109/imws-amp62793.2024.10966580.

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McCoy, Stephen, Brian A. Baker, and William MacDonald. "Hydrogen Stress Cracking Resistance of Precipitation Hardenable Nickel Alloys and Optimization." In CONFERENCE 2024. AMPP, 2024. https://doi.org/10.5006/c2024-20719.

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Abstract The material trend in the Oil &amp; Gas sector is for high strength materials with high levels of corrosion resistance to resist increasingly harsh sour downhole environments. Compared to sweet wells the presence of hydrogen sulphide, elemental sulphur and hydrogen generally requires material selection of tubular and bar products in high performance stainless steels and nickel base alloys to withstand the pressures and temperatures. The materials of choice must be corrosion resistant, cost effective, reliable and have the strength required for the well design conditions. The material
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McCoy, Stephen, Brian A. Baker, and William MacDonald. "The Development of Highly Corrosion Resistant PH Nickel Bar for Sour Oil & Gas and Hydrogen Stress Cracking Resistance." In MECC 2023. AMPP, 2023. https://doi.org/10.5006/mecc2023-20363.

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Abstract The material trend in the Oil &amp; Gas sector is for high strength materials with high levels of corrosion resistance to resist increasingly harsh sour downhole environments. Compared to sweet wells the presence of hydrogen sulphide, elemental sulphur and hydrogen generally requires material selection of tubular and bar products in high performance stainless steels and nickel base alloys to withstand the pressures and temperatures. The materials of choice must be corrosion resistant, cost effective, reliable and have the strength required for the well conditions. Age hardened nickel
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Brett, S. J. "Service Experience with a Retrofit Modified 9Cr (Grade 91) Steel Header." In AM-EPRI 2007, edited by R. Viswanathan, D. Gandy, and K. Coleman. ASM International, 2007. https://doi.org/10.31399/asm.cp.am-epri-2007p0590.

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Abstract In 2004, extensive Type IV cracking was discovered in the branch and attachment welds of a modified 9Cr (Grade 91) header after 58,000 hours of service. The header, installed as a retrofit in a 500MW unit in 1992, was inspected early due to concerns over the incorporation of low nitrogen-to-aluminum (N:Al) ratio components, a factor previously linked to premature failures of this steel grade in the UK. Investigations confirmed the presence of coarse aluminum nitride (AlN) precipitates, a depleted VN-type MX precipitate population, and reduced parent and Type IV creep strength in low N
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Hendrix, David E., and Russell D. Kane. "API 5CT Grade L80 (Type 1) Tubing: Environmental Cracking in Non-sour Service Wells and the Influence of Metallurgy, Well Stimulation and Chemical Treatment." In CORROSION 2015. NACE International, 2015. https://doi.org/10.5006/c2015-05851.

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Abstract API(1) 5CT Grade L80, type 1 oil country tubular goods (OCTG), e.g. production tubing &amp; casing, in non-sour, natural gas wells in East Texas failed after relatively short exposure times upon being placed in service. Laboratory failure analysis of failed tubing and casing from several wells determined that the L80 tubing failed from environmental cracking initiating in the body on the annular (O.D.) side of the tubing/casing. The laboratory testing also showed that the failed tubing and casing met compositional and mechanical requirements of API 5CT L80 and NACE MR0175/ISO15156 req
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Lin, Xin, Mocong Yang, Xiaojing Xu, Haiou Yang, Jing Chen, and Weidong Huang. "Phase evolution in laser solid formed compositionally graded Ti60-Ti2AlNb alloys." In ICALEO® 2009: 28th International Congress on Laser Materials Processing, Laser Microprocessing and Nanomanufacturing. Laser Institute of America, 2009. http://dx.doi.org/10.2351/1.5061597.

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Jovanova, Jovana, Mary Frecker, Reginald F. Hamilton, and Todd A. Palmer. "Target Shape Optimization of Functionally Graded Shape Memory Alloy Compliant Mechanism." In ASME 2016 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/smasis2016-9070.

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Nickel Titanium (NiTi) shape memory alloys (SMAs) exhibit shape memory and/or superelastic properties, enabling them to demonstrate multifunctionality by engineering microstructural and compositional gradients at selected locations. This paper focuses on the design optimization of NiTi compliant mechanisms resulting in single-piece structures with functionally graded properties, based on user-defined target shape matching approach. The compositionally graded zones within the structures will exhibit an on demand superelastic effect (SE) response, exploiting the tailored mechanical behavior of t
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Kurishima, K., H. Nakajima, S. Yamahata, T. Kobayashi, and Y. Matsuoka. "Effects of a Compositionally Graded InxGa1-xAs Base in Abrupt-Emitter InP/InGaAs HBTs." In 1994 International Conference on Solid State Devices and Materials. The Japan Society of Applied Physics, 1994. http://dx.doi.org/10.7567/ssdm.1994.c-6-1.

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Jovanova, Jovana, Simona Domazetovska, and Mary Frecker. "Modeling of the Interface of Functionally Graded Superelastic Zones in Compliant Deployable Structures." In ASME 2018 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/smasis2018-8176.

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Functionally graded compliant mechanisms can be fabricated with additive manufacturing technology by engineering the microstructural and compositional gradients at selected locations resulting in compositionally graded zones of higher and lower flexibility. The local compliance depends on the geometry of the structure as well as the material property in the selected region. As Nitinol (NiTi) is well suited for applications requiring compliance, the critical transformation stress and the superelastic modulus of elasticity are crucial parameters for defining the local compliance. To understand t
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Ou, Hao, Jiang Pu, Tomoyuki Yamada, et al. "Continuous Color-Tunable Light-Emitting Devices Based on Compositionally Graded Monolayer Transition Metal Dichalcogenide Alloys." In 2022 International Conference on Solid State Devices and Materials. The Japan Society of Applied Physics, 2022. http://dx.doi.org/10.7567/ssdm.2022.h-5-02.

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Reports on the topic "Compositionally graded materials"

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Mayas, Magda. Creating with timbre. Norges Musikkhøgskole, 2018. http://dx.doi.org/10.22501/nmh-ar.686088.

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Unfolding processes of timbre and memory in improvisational piano performance This exposition is an introduction to my research and practice as a pianist, in which I unfold processes of timbre and memory in improvised music from a performer’s perspective. Timbre is often understood as a purely sonic perceptual phenomenon. However, this is not in accordance with a site-specific improvisational practice with changing spatial circumstances impacting the listening experience, nor does it take into account the agency of the instrument and objects used or the performer’s movements and gestures. In m
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