Gracia-Fernandez C.A.,Faraday Inc. |
Gomez-Barreiro S.,University College Dublin |
Lopez-Beceiro J.,University of La Coruna |
Tarrio Saavedra J.,University of La Coruna |
And 2 more authors.
Polymer Testing | Year: 2010
Measurements of the glass transition temperature obtained by dynamic mechanical analysis (DMA) and temperature modulated differential scanning calorimetry (TMDSC) are reported to be different. This was mainly attributed to the frequency effect. To obtain comparable measurements, experimental conditions were studied. Although some experimental issues had to be fixed, it was possible to apply the same frequency and temperature using quasi-isothermal conditions in both instruments. The method was tested with three different polymer samples. It was then found that when choosing a suitable response parameter, i.e. the phase angle, the dynamic glass transition temperature values obtained by both methods are practically the same. © 2010 Elsevier Ltd. All rights reserved. Source
Kakinuma Y.,Keio University |
Mori M.,DMG MORI SEIKI Co. |
Oda Y.,DMG MORI SEIKI Co. |
Mori T.,Keio University |
And 3 more authors.
CIRP Annals - Manufacturing Technology | Year: 2016
Directed energy deposition (DED) for producing a complex shaped metal part has attracted attention in the aerospace industry. However, DED easily causes structural defects such as voids and compositional changes, which results in the deterioration of the mechanical strength of the product. Hence, reducing such defects is essential. In this study, the influence of the powder characteristics of Inconel 625 was focused upon, and the void density and compositional change inside the deposited part were analyzed. The results indicated that a slight amount of carbon in the particle caused void generation and a carbon layer was formed at the surface. © 2016 CIRP. Source
Faraday Inc. | Date: 2012-09-24
An electric bicycle and electric bicycle frame including batteries stored in a pair of substantially parallel top tubes. In some cases, the top tubes extend rearward of the bicycle seat tube, and an electronics housing may be disposed between the rearward extending top tube portions.
Faraday Inc. | Date: 2016-02-08
Faraday Inc. | Date: 2013-04-01
An electric bicycle and electric bicycle frame including batteries or a battery pack stored in one or more tubes of the frame. In some cases, a pair of top tubes extend rearward of the bicycle seat tube, and an electronics housing may be disposed between the rearward extending top tube portions. Alternatively or in addition, a removable bottom bracket shell portion and a removable bottom bracket insert may be provided, to allow convenient access to the interior portions of the down tube and/or seat tube of the frame. A battery pack and/or a battery electronics management unit may be conveniently within one or both of the down tube and the seat tube.