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Det här är en rapport som sammanfattar ett examensarbete av studenten Michael GustafssonTapper skriven under våren 2018. Examensarbetet är en del av mastern Integreradproduktutveckling inom spåret Teknisk design på KTH, Kungliga Tekniska Högskolan iStockholm, Sverige. Dagens montörer i monteringsliner i fabriker får sin feedback från sinaverktyg men ibland missas denna information av montörerna. Det här examensarbetetresulterade i en vidareutveckling av ett tidigare projekt in kursen MF2016 Industriell design högrekurs, del 2. Resultatet var en lösning av ett par skyddsglasögon vid namn Protective SignalProvider eller PSP inom produktfamiljen Operator Feedback, OPF. PSP använde ljus från LEDlamporoch ljudvågor i form av vibrationer från benöverförande högtalare. En mer utförligundersökning gjordes också för att para den PSP med Atlas Copcos monteringssystem controllerPF6000. PSP använde sig av Bluetooth low energy för kommunikation och kan anslutas tillverktyget och till monteringens gränssnitt. En utvärdering jämförde den tidigare externaprodukten som kunde fästas på ett par skyddsglasögon med den nya produkten med integreradekomponenter. Utvärderingen resulterade i att den externa produkten skulle bli den bästalösningen för Atlas Copco att fortsätta med eftersom regleringar, lagar och standarder gör PSPför komplex att producera. / This report is a document summarizing a master thesis by the student Michael GustafssonTapper written during the spring of 2018. The thesis is the part of the master Integrated ProductDesign in the field of Industrial Design engineering at KTH, The Royal Institute of Technologyin Stockholm, Sweden. Today workers in assembly lines get feedback from their tools, butsometimes this transmitted information is missed by the worker. This thesis resulted in adevelopment of a previous project in the course MF2016 Industrial Design Engineering AdvancedCourse, Part 2. The result was a solution with a pair of safety glasses by the name Protective SignalProvider or PSP within the product family Operator Feedback, OPF. PSP used light of LEDsand soundwaves in form of vibration from bone conductive speakers. A more extensiveinvestigation was also done to pair PSP to Atlas Copco’s assembly system controller PF6000. ThePSP used Bluetooth low energy for communication and can be connected to the tool in use andthe interface of the assembly. An evaluation compared the previous external product that couldbe placed on a pair of safety glasses with the new internal product with integrated components.The evaluation resulted in the external product being the best solution for Atlas Copco toproceed with since regulations, laws and standards make PSP too complex to produce.

京都大学 / 新制・課程博士 / 博士(工学) / 甲第25015号 / 工博第5192号 / 新制||工||1991(附属図書館) / 京都大学大学院工学研究科合成・生物化学専攻 / (主査)教授 古川 修平, 教授 生越 友樹, 教授 杉安 和憲 / 学位規則第4条第1項該当 / Doctor of Philosophy (Engineering) / Kyoto University / DFAM

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<p> When a polymer system is strained below its glass transition temperature, T9 , deformed regions called crazes may be formed that have a characteristic extension ratio, λ. Examining the regions of deformed material, which are almost visible to the naked eye, and measuring λ with the use of atomic force microscopy gives information about the space between entanglements along a polymer chain, which is a truly molecular quantity. In this work we present the results of experiments in which entanglements in high molecular weight polystyrene (PS) samples have effectively been swelled by diluting the network with low molecular weight PS. We find that these experiments not only tell us how the molecular weight of a polymer can affect its contribution to the polymer network, but also give an entirely new method of determining the entanglement molecular weight, Me, of a polymer system. </p> / Thesis / Master of Science (MSc)

Metallic Glasses are multi-component alloys with disordered atomic structures and unique and attractive properties such as ultra-high strength, soft magnetism, and excellent corrosion/wear resistance. In addition, they may be thermoplastically processed in the supercooled liquid region to desired shapes across multiple length-scales. Recently developed metallic glasses based on noble metals (such as Pt and Pd) are highly active in catalytic reactions such as hydrogen oxidation, oxygen reduction, and degradation of organic chemicals for environmental remediation. However, there is a limited understanding of the underlying electrochemical mechanisms and surface characteristics of catalytically active metallic glasses. Here, we demonstrate the influence of alloy chemistry and the associated electronic structure on the activity of a systematic series of Pt42.5−xPdxCu27Ni9.5P21 bulk metallic glasses (BMGs) with x = 0 to 42.5 at%. The activity and electrochemically active surface area as a function of composition are in the form of volcano plots, with a peak around an equal proportion of Pt and Pd. These amorphous alloys showed more than two times the hydrogen oxidation reactivity compared to pure Pt. This high activity was attributed to their lower electron work function and higher binding energy of Pt core level that reduced charge-transfer resistance and improved electrocatalytic activity from weakened chemisorption of protons. To address the high cost associated with noble-metal-based amorphous catalysts, the performance of non-noble M100-xPx alloys was evaluated with a systematic variation in chemistry (M = Ni, Co; x = 0, 10, 15, 20, 30 at%). These alloys were synthesized by a scalable pulsed electrodeposition approach with glass formation seen in the range of 10 at% to 20 at% P. Enhanced corrosion resistance was observed with increasing phosphorus content as evidenced by the significant decrease in corrosion current density and ten-fold higher polarization resistance of M80P20 (M = Ni, Co) compared to its corresponding pure metal in representative electrolytes. Surface characterization showed enrichment of phosphorus in the passive layer, that likely promoted the restoration of the protective hypophosphite phase. The overpotential for hydrogen evolution reaction decreased by 35% and 45% in the case of Ni100−xPx and Co100−xPx, respectively, with increasing phosphorus content from 0 at% to 20 at%. Also, the M80P20 (M = Ni, Co) metallic glasses demonstrated excellent oxygen evolution reaction efficiency with a 10 mA/cm2 current density at 50% overpotential compared to pure Pt in alkaline media. The high activity and excellent durability of the non-noble amorphous alloys for hydrogen/oxygen evolution reactions (HER/OER) were attributed to the decreased binding energy of the P core level due to the synergy between the proton-acceptor (P centers) and hydride/hydroxide-acceptor (metal centers) sites.