Results 71 to 80 of about 318,126 (177)
This work demonstrates progress in the development of wide‐bandgap CIGS solar cells featuring a transparent back contact, for the application of top cell in tandem devices. A semitransparent device with a bandgap of 1.6 eV achieved a power conversion efficiency of nearly 13% on an ITO back contact.
Kulwinder Kaur +6 more
wiley +1 more source
Martensitic and Related Transformations in Ni-Al Alloys [PDF]
The present paper gives a review of results of recent studies investigating the fundamentals of the martensitic and related phase transformations in Ni-Al. For the former case, the emphasis will be on the microstructure of martensite plates. The latter include the metastable Ni2Al w-like and stable Ni5Al3 bainitic phases. These phases will be discussed
openaire +2 more sources
This study explored how effective nickel aluminide coatings are obtained in providing oxidation resistance applied to the Inconel 738 alloy, modeling with diffusion models. In the present study, kinetics and thermal behavior of the Inconel 738 alloy were studied by the low‐temperature thermoreactive aluminizing process, which was carried out at 625°C ...
Gozde Celebi Efe +4 more
wiley +1 more source
Study of the Isothermal Oxidation Process and Phase Transformations in B2-(Ni,Pt)Al/RENE-N5 System
Changes in composition, crystal structure and phase transformations of B2-(Ni,Pt)Al coatings upon isothermal oxidation experiments (natural and scale free oxidation) at 1100 °C, as a function of time beyond their martensitic transformation, are reported.
Luis Alberto Cáceres-Díaz +7 more
doaj +1 more source
Beyond hydrogen: Process design of a biogas steam reformer for Fischer–Tropsch synthesis
The effect of pressure and steam to carbon ratio on carbon conversion. Abstract We present an analysis of a pilot‐scale multi‐tubular biogas steam reforming reactor, part of a sustainable aviation fuel (SAF) development project in Brazil. The novelty of this work is the application of a new, validated power law kinetic model, specifically developed for
Rafael Belo Duarte +3 more
wiley +1 more source
The Dilatometric Analysis of the High Carbon Alloys from Ni-Ta-Al-M System
In the following work presents results of high carbon alloys from the Ni-Ta-Al-M system are presented. The alloys have been designed to have a good tribological properties at elevated temperatures. Despite availability of numerous hot work tool materials
Bała P.
doaj +1 more source
Coupled Structural Characteristics Boost Brazing Performance of Ti2AlNb Alloy
ABSTRACT Brazing of Ti2AlNb alloy is a pivotal technique for new generation aero‐engine lightweight structures, yet developing novel filler metal and achieving the extraordinary performance of titanium alloy brazed joints remains challenging. Here, this study designed an innovative filler metal (Ti70‐xZrxCu15Ni15) and developed inspired coupled ...
Yinchen Wang +13 more
wiley +1 more source
Synthesis of Complex-Alloyed Nickel Aluminides from Oxide Compounds by Aluminothermic Method
This paper deals with the investigation of complex-alloyed nickel aluminides obtained from oxide compounds by aluminothermic reduction. The aim of the work was to study and develop the physicochemical basis for obtaining complex-alloyed nickel aluminides
Victor Gostishchev +7 more
doaj +1 more source
Decoding Superconductivity in La3Ni2O7−δ Thin Films via Ozone‐Driven Structure and Oxidation Tuning
We demonstrate that superconductivity in La3Ni2O7‐δ thin films correlate with the LNO‐2222 polytype, which must extend coherently across the layer. Conversely, the LNO‐1313 phase disrupts superconductivity, as confirmed by recent studies. Our work highlights the need to stabilize the 2222 phase through optimized growth to achieve robust and ...
Mathieu Flavenot +8 more
wiley +1 more source
ABSTRACT The integrated analysis of lithofacies, mineralogy and geochemistry of the hemipelagic marine succession exposed in La Cerradura section (South‐Iberian Palaeomargin) provides new information to characterise the palaeoenvironmental conditions during the latest Pliensbachian to early Toarcian, including the Jenkyns Event.
Chaima Ayadi +4 more
wiley +1 more source

