Zobrazeno 1 - 10
of 73
pro vyhledávání: '"João C.C. Abrantes"'
Autor:
Ramin Rahmani, Pedro R. Resende, Rúben Couto, Sérgio I. Lopes, Rahul Kumar, Himanshu S. Maurya, Javad Karimi, Alexandre M. Afonso, Abrar Hussain, João C.C. Abrantes
Publikováno v:
Journal of Alloys and Metallurgical Systems, Vol 7, Iss , Pp 100097- (2024)
Additively manufactured complex geometries from copper alloys with high thermal and mechanical properties have drawn the attention of researchers. The present contribution explores the additive manufacturing (AM) of copper-based alloys from powder pa
Externí odkaz:
https://doaj.org/article/8cedb1c98d3e400890d380057a651bbe
Autor:
Sergei A. Chernyak, I. V. Kolbanev, João C.C. Abrantes, A. V. Shlyakhtina, Maxim Avdeev, K. N. Denisova, E. Gomes, Nikolay V. Lyskov, Olga S. Volkova, Alexander N. Vasiliev
Publikováno v:
Dalton Transactions. 49:2833-2842
Phase-pure orthorhombic compositions at a Ln/Mo ratio ∼ 5.2–5.7 (Ln = Gd, Dy, Ho) have been obtained for the first time by prolonged (40–160 h) heat treatment of mechanically activated 5Ln2O3 + 2MoO3 (Ln = Gd, Dy, Ho) oxide mixtures at 1200 °C
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74ffc0f1a6ae484ed39c233b3eafe315
https://doi.org/10.1039/c9dt04724g
https://doi.org/10.1039/c9dt04724g
Autor:
J. F. Silva, P. L. Silva, Lígia Torres Silva, João C.C. Abrantes, Carlos Oliveira, Cristina Reis
Publikováno v:
Procedia Structural Integrity. 22:144-150
"First International Symposium on Risk Analysis and Safety of Complex Structures and Components (IRAS 2019)"
Urban rehabilitation is becoming more frequent nowadays. With cities full of falling buildings and no space to build new ones, the only
Urban rehabilitation is becoming more frequent nowadays. With cities full of falling buildings and no space to build new ones, the only
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0fce0925ee47a3b4e224dac76d05dd84
https://doi.org/10.1016/j.prostr.2020.01.020
https://doi.org/10.1016/j.prostr.2020.01.020
Autor:
João C.C. Abrantes, Renata D’arc Coura, Luis Miguel Brito, António G. Brito, Joaquim Alonso, A. C. Rodrigues, Ana Ferraz
Publikováno v:
Sustainability, Vol 13, Iss 2175, p 2175 (2021)
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Sustainability
Volume 13
Issue 4
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Sustainability
Volume 13
Issue 4
The present study aimed to optimize the struvite chemical precipitation process in nitrogen-rich anaerobic co-digestion systems. Struvite precipitation experiments were carried out using a mixture of cattle slurry liquid fraction and sewage sludge, w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26cf629064072bfe2815ec8e5be6b5ce
https://www.mdpi.com/2071-1050/13/4/2175
https://www.mdpi.com/2071-1050/13/4/2175
Autor:
Nilza Ribeiro, J. H. Belo, Ana Filipa Rodrigues, Vitor S. Amaral, Susana M. Olhero, P.M.C. Torres, Manuel J.S. Barros, Aureliana Sousa, João C.C. Abrantes, Rafaela Presa, Ana Bettencourt, João S. Amaral, Manuel Bañobre-López
Publikováno v:
Biomedical materials (Bristol, England). 16(1)
A calcium phosphate (CaP)-based scaffold used as synthetic bone grafts, which smartly combines precise dimensions, controlled porosity and therapeutic functions, presents benefits beyond those offered by conventional practices, although its fabricati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e1402eded52e4ed3e5e451be7b642780
https://pubmed.ncbi.nlm.nih.gov/32750692
https://pubmed.ncbi.nlm.nih.gov/32750692
Publikováno v:
Ceramics International. 44:8249-8256
Alpha-tricalcium phosphate (α-TCP) is a component of particular interest in the formulation of apatitic calcium phosphate based bone cements. During the setting reaction of this type of cements, a calcium deficient hydroxyapatite with composition si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d63c037cfe6a7efa2ca5363a700fedc4
https://doi.org/10.1016/j.ceramint.2018.02.005
https://doi.org/10.1016/j.ceramint.2018.02.005
Autor:
Sandra Vieira, Susana M. Olhero, Sónia Ferreira, Ana Marote, José M.F. Ferreira, Catarina F. Marques, João C.C. Abrantes
Publikováno v:
Ceramics International. 43:15719-15728
Biphasic [hydroxyapatite (HA) + β -tricalcium phosphate ( β -TCP)] calcium phosphate powders with partial substitutions of Ca 2+ by silver, copper, zinc and strontium ions were synthesized by precipitation. The aim was to improve the overall biolog
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ba2e7125bd15f1ade31af918a7fe10f
https://doi.org/10.1016/j.ceramint.2017.08.133
https://doi.org/10.1016/j.ceramint.2017.08.133
Publikováno v:
Materials & Design, Vol 117, Iss, Pp 332-337 (2017)
This work focuses on designing highly-porous cellular NiAl2O4-based spinel ceramics through combined suspension emulsification/reactive sintering and further decoration of the pore surfaces by Ni nanoparticles for potential applications in heterogene
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0cf87351ad93f3046bb2a8072aadba96
http://www.sciencedirect.com/science/article/pii/S0264127517300035
http://www.sciencedirect.com/science/article/pii/S0264127517300035
Publikováno v:
Ceramics International. 43:3847-3853
La 9.33 Si 2 Ge 4 O 26 materials have been fabricated from La 2 O 3 , SiO 2 and GeO 2 powders by high speed mechanical alloying followed by conventional and microwave hybrid sintering at different temperatures and holding times. XRD data showed that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c1ee3286ae12618cc6a232d300453fa
https://doi.org/10.1016/j.ceramint.2016.12.043
https://doi.org/10.1016/j.ceramint.2016.12.043
Autor:
Sergei A. Chernyak, João C.C. Abrantes, A. V. Shlyakhtina, Nikolay V. Lyskov, O.K. Karyagina, I. V. Kolbanev, E. Gomes, Elena P. Kharitonova, E. Yu. Konysheva, L. G. Shcherbakova
Publikováno v:
Materials, Vol 12, Iss 15, p 2452 (2019)
Materials
Volume 12
Issue 15
Materials
Volume 12
Issue 15
Sm2&minus
xCaxZr2O7&minus
x/2 (x = 0, 0.05, 0.1) and Gd2&minus
x/2 (x = 0.05, 0.1) mixed oxides in a pyrochlore&ndash
fluorite morphotropic phase region were prepared via the mechanical activation of oxide mixtures, followed by an
xCaxZr2O7&minus
x/2 (x = 0, 0.05, 0.1) and Gd2&minus
x/2 (x = 0.05, 0.1) mixed oxides in a pyrochlore&ndash
fluorite morphotropic phase region were prepared via the mechanical activation of oxide mixtures, followed by an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7de275bcba5083a84c5666debcc70c2c
https://www.mdpi.com/1996-1944/12/15/2452
https://www.mdpi.com/1996-1944/12/15/2452