000120169 001__ 120169
000120169 005__ 20240319081012.0
000120169 0247_ $$2doi$$a10.1016/j.jclepro.2022.134533
000120169 0248_ $$2sideral$$a131220
000120169 037__ $$aART-2022-131220
000120169 041__ $$aeng
000120169 100__ $$aMonreal-Pérez, P.
000120169 245__ $$aFull-scale dynamometer tests of composite railway brake shoes including latxa sheep wool fibers
000120169 260__ $$c2022
000120169 5060_ $$aAccess copy available to the general public$$fUnrestricted
000120169 5203_ $$aThe main target of the present work is to characterize the effect of the inclusion of natural sheep wool (SW) into a railway brake block composition and then to compare it to that of a set of three organic fibers commonly used in the friction material industry: aramid fiber (AF), cellulose fiber (CF) and polyacrylonitrile fiber (PAN). In order to achieve this, 4 versions of the same friction material with a fixed amount of each organic fiber were produced and one more sample was manufactured including no organic fibers. The characterization work consisted of friction tests on a full-scale railway test rig. Then, the samples were SEM analyzed in order to characterize the tested surface microstructure. It was found that all organic fibers helped achieve a more stable bedding, and showed lower friction in wet conditions. They also affected the recovery %. Pictures of the blocks were taken after certain phases of the test and, although the failure sequence remained the same for all samples, the organic fibers very much influenced the magnitude of the wear rates. Sheep wool led to better results than cellulose. No final conclusions could be drawn with respect to metal pick-up. SEM analysis evidenced primary and secondary plateaus, but no significant differences were observed depending on the fiber nature. Finally, a Life Cycle Assessment with a “from cradle to gate” perspective was carried out. Ecoinvent v3.5 database and CML and ReCiPe Endpoint methodologies were used to evaluate the environmental impact create by the five brake block materials. Overall, cellulose, PAN and sheep wool brake blocks show slightly lower environmental impacts that the base material or than aramid fibers. Therefore, Latxa sheep wool offers a good balance between low cost, adequate wear rates and environmental impact, making it a compelling substitute for cellulose fibers.
000120169 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc$$uhttp://creativecommons.org/licenses/by-nc/3.0/es/
000120169 590__ $$a11.1$$b2022
000120169 592__ $$a1.981$$b2022
000120169 591__ $$aENGINEERING, ENVIRONMENTAL$$b8 / 55 = 0.145$$c2022$$dQ1$$eT1
000120169 593__ $$aEnvironmental Science (miscellaneous)$$c2022$$dQ1
000120169 591__ $$aGREEN & SUSTAINABLE SCIENCE & TECHNOLOGY$$b8 / 46 = 0.174$$c2022$$dQ1$$eT1
000120169 593__ $$aStrategy and Management$$c2022$$dQ1
000120169 591__ $$aENVIRONMENTAL SCIENCES$$b22 / 275 = 0.08$$c2022$$dQ1$$eT1
000120169 593__ $$aRenewable Energy, Sustainability and the Environment$$c2022$$dQ1
000120169 593__ $$aIndustrial and Manufacturing Engineering$$c2022$$dQ1
000120169 594__ $$a18.5$$b2022
000120169 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000120169 700__ $$0(orcid)0000-0001-9137-3387$$aElduque, D.$$uUniversidad de Zaragoza
000120169 700__ $$aLópez, D.
000120169 700__ $$aSola, I.
000120169 700__ $$aYaben, J.
000120169 700__ $$0(orcid)0000-0003-4230-7900$$aClavería, I.$$uUniversidad de Zaragoza
000120169 7102_ $$15004$$2545$$aUniversidad de Zaragoza$$bDpto. Ingeniería Mecánica$$cÁrea Ingeniería Mecánica
000120169 773__ $$g379 (2022), 134533[14 pp.]$$pJ. clean. prod.$$tJournal of Cleaner Production$$x0959-6526
000120169 8564_ $$s10004644$$uhttps://zaguan.unizar.es/record/120169/files/texto_completo.pdf$$yVersión publicada
000120169 8564_ $$s2555028$$uhttps://zaguan.unizar.es/record/120169/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000120169 909CO $$ooai:zaguan.unizar.es:120169$$particulos$$pdriver
000120169 951__ $$a2024-03-18-15:16:41
000120169 980__ $$aARTICLE