Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Mark A. Atwater"'
Publikováno v:
Materials, Vol 16, Iss 15, p 5407 (2023)
Powder-based methods that are used to make porous metals are relatively simple and scalable, and porosity can be controlled by interparticle spacing as well as the addition of a sacrificial template. A relatively new process based on reducing oxides
Externí odkaz:
https://doaj.org/article/1bb3ac1580e24e49954969b0062dbbb7
Publikováno v:
Materials Research Letters, Vol 7, Iss 4, Pp 131-136 (2019)
Mechanical alloying has been repeatedly demonstrated as an effective means to create unique structural materials, but it is comparatively rare that functional alloys are produced. Multi-phase functional alloy production is demonstrated with an oxide-
Externí odkaz:
https://doaj.org/article/e876df14834d405f881e7ea8193c4f1f
Autor:
Mark A. Atwater, Sean J. Fudger, Christopher B. Nelson, B.Chad Hornbuckle, Steven J. Knauss, Samuel A. Brennan, Kristopher A. Darling
Publikováno v:
Materials & Design, Vol 186, Iss , Pp - (2020)
Pore expansion in solid metals is typically driven by an entrapped gas phase, such that temperature directly determines both the pressure within the pores and the ability of the matrix to plastically deform. This approach fundamentally limits the tot
Externí odkaz:
https://doaj.org/article/c6f15550a1574301963f891f08fb50ca
Publikováno v:
AIMS Materials Science, Vol 4, Iss 4, Pp 939-955 (2017)
Microscale and nanoscale CuO was dispersed in Cu using room temperature high-energy ball milling over time intervals of 5, 30, 60, 120, and 240 min. These samples were then annealed under a reducing atmosphere for 1 h at temperatures of 400, 600, 800
Externí odkaz:
https://doaj.org/article/3fbad9b7b6c644029aa2a2d7d30401a2
Publikováno v:
AIMS Materials Science, Vol 3, Iss 2, Pp 573-590 (2016)
Porous metals can be created through a wide variety of processing techniques, and the pore morphology resulting from these processes is equally diverse. The structural and functional properties of metal foams are directly dependent on the size, shape
Externí odkaz:
https://doaj.org/article/2faf65c60ddf4f158125c6d93d090663
Publikováno v:
Fibers, Vol 3, Iss 4, Pp 394-410 (2015)
Carbon nanofibers were generated over bimetallic catalysts in an atmospheric pressure chemical vapor deposition (APCVD) reactor. Catalyst compositions of Fe 30 at%, Cu and Ni 30 at% and Cu were mechanically alloyed using high-energy ball milling over
Externí odkaz:
https://doaj.org/article/eb5a5d52c2ce42c5ada1bed93f375365
Autor:
Arash K. Mousavi, Mark A. Atwater, Behnam K. Mousavi, Mohammad Jalalpour, Mahmoud Reda Taha, Zayd C. Leseman
Publikováno v:
Materials, Vol 7, Iss 6, Pp 4845-4853 (2014)
Entangled networks of carbon nanofibers are characterized both mechanically and electrically. Results for both tensile and compressive loadings of the entangled networks are presented for various densities. Mechanically, the nanofiber ensembles follo
Externí odkaz:
https://doaj.org/article/7c88df17faa54a5884b0f6b760c1031c
Publikováno v:
Metals, Vol 9, Iss 3, p 335 (2019)
Bimetallic catalysts can provide enhanced performance, and Co-based catalysts in particular have been studied in various respects for their activity in the deposition of carbon nanofibers (CNFs). The majority of studies on CNF catalysis use co-precip
Externí odkaz:
https://doaj.org/article/6b26a940d99346389a940d3452566077
Publikováno v:
Metals, Vol 8, Iss 4, p 286 (2018)
Mechanical alloying (MA) has been and continues to be thoroughly examined for creating structural materials, but the production of catalysts is relatively rare. This is especially true for catalysts used in the production of carbon nanofibers (CNFs),
Externí odkaz:
https://doaj.org/article/c7dccf21fd734e969d62cd2ae2906480
Autor:
Mark A. Atwater, Sean G. Corcoran
Publikováno v:
Advanced Engineering Materials. :2201629
A low cost and scalable powder-based method for producing nanoporous Ni is demonstrated, and the only processing byproduct is water vapor. This is achieved by creating a metal-matrix composite of Ni and NiO that is then reduced under dilute hydrogen