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Rheology assessment and barite sag in a typical North Sea oil-based drilling fluid at HPHT conditions
(Peer reviewed; Journal article, 2023)The occurrence of barite sag in drilling fluids has relatively often been the cause for gas kicks in oilwell drilling. The subsequent absorption of gas into drilling fluid could lower the density and reduce the viscosity ... -
Rietveld Analysis of Computed Tomography and its Application to Methanol to Olefin Reactor Beds
(Journal article, 2015) -
Risk-based inspection planning for hydrogen technologies: review of currents standards and suggestions for modification
(Peer reviewed; Journal article, 2021)The research addressing loss of integrity (LOI) for hydrogen containment technologies requires a multidisciplinary perspective. However, lack of collaboration between materials and process safety engineers is reflected in ... -
Roadmap for additive manufacturing of HAYNES® 282® superalloy by laser beam powder bed fusion (PBF-LB) technology
(Peer reviewed; Journal article, 2021)Although various alloy systems have been explored for additive manufacturing (AM) during the past decade, introducing a new alloy remains a challenging task. Most of the materials require iterative builds, for investigating ... -
A Roadmap for Transforming Research to Invent the Batteries of the Future Designed within the European Large Scale Research Initiative BATTERY 2030+
(Peer reviewed; Journal article, 2022)This roadmap presents the transformational research ideas proposed by “BATTERY 2030+,” the European large-scale research initiative for future battery chemistries. A “chemistry-neutral” roadmap to advance battery research, ... -
A robust method to calculate the volume phase transition temperature (VPTT) for hydrogels and hybrids
(Peer reviewed; Journal article, 2017)Here, we report three different methods to determine the volume phase transition temperature (VPTT) of various systems including poly(N-isopropylacrylamide) (pNIPAm) based nanogels, Au nanoclusters and a combination of ... -
Robust nanocomposites of a-Fe2O3 and N-doped graphene oxide: Interfacial bonding and chemisorption of H2O
(Peer reviewed; Journal article, 2019)Nanocomposites of α-Fe2O3 (hematite) and (N-doped) graphene oxide (GO) were investigated using first-principles calculations with focus on structure, chemical bonding, electronic structure and H2O adsorption. The nanocomposites ... -
Robustness in shipbuilding planning and operations- Summary report NextShip
(SINTEF Rapport;2018:00865, Report, 2018)The enablers of Norwegian shipbuilding excellence are cutting edge technology and proactive team behaviour to effectively share & combine resources and knowledge to quickly handle disturbances. That said, the average cost ... -
RobustNot - Dokumentasjon av mekaniske egenskaper og dimensjoner til notlin i oppdrettsnøter
(SINTEF Rapport;2018:00971, Research report, 2018) -
Rock physics model of shale: Predictive aspect
(Peer reviewed; Journal article, 2021)Shales often show strong elastic anisotropy that originate from the alignment and platy nature of its constituent minerals. Despite its impact on AVO (Amplitude Variation with Offset) response and seismic time-shifts, ... -
Role of Adsorbate Coverage on the Oxygen Dissociation Rate on Sr-Doped LaMnO3 Surfaces in the Presence of H2O and CO2
(Peer reviewed; Journal article, 2020)Sr-doped LaMnO3 (LSM) is a promising oxygen reduction reaction electrocatalyst in solid oxide fuel cells and other electrochemical devices. The presence of CO2 and H2O has been reported to promote the oxygen dissociation ... -
The Role of Grain Boundary Precipitates during Intergranular Fracture in 6xxx Series Aluminium Alloys
(Peer reviewed; Journal article, 2021)During ageing, 6xxx aluminium alloys will develop a microstructure characterised by needle-shaped Mg/Si-rich precipitates in the bulk, precipitate-free zones along the grain boundaries and larger Mg/Si-rich precipitates ... -
Role of metal quality and porosity formation in low pressure die casting of A356: Experimental observations
(Peer reviewed; Journal article, 2021)Porosity is one of the major problems in casting operations and there are several discussions in the literature about the porosity formation in aluminum castings. Bifilms are the defects that are introduced into the melt ... -
Role of Pitting in the Formation of Potholes in Carbon Cathodes - A Review
(Journal article, 2016) -
The role of sustainability characteristics in the diffusion of renewable energy technologies
(Peer reviewed; Journal article, 2023)This paper aims to investigate the role of sustainability factors in the diffusion of solar photovoltaic (PV) technologies. A combined economic innovation-diffusion model that accounts for additional sustainability aspects ... -
Room temperature creep mechanism of a Pb-Sn-Sb lead alloy
(Peer reviewed; Journal article, 2019)Lead alloys are the most common materials adopted for the production of subsea power cable sheathing. The sheathing is a layer of stable and watertight metal, which serves to prevent the electrical failure of the cable. ... -
Root causes for corrosion on painted steel structures in marine environments
(Peer reviewed; Journal article, 2023)Our understanding of the failure mechanisms of coatings, for example, cathodic disbonding, corrosion creep, blistering, and cracking, have been developed to a high level over the past decades. However, knowing what actually ... -
Root formation and mechanical properties in laser keyhole welding of 15 mm thick HSLA steel
(Peer reviewed; Journal article, 2021)Deep penetration laser welding is promising in joining thick (> 10 mm) steel sections. Focused laser beam by drilling vapour cavity, the keyhole, generates deep and narrow welds. Full penetration single-pass joining has a ... -
Root formation and metallurgical challenges in laser beam and laser-arc hybrid welding of thick structural steel
(Peer reviewed; Journal article, 2021)Single-pass laser beam welding (LBW) of steel components with wall thickness of > 10 mm is of high interest due to enhanced productivity. Deep penetration LBW provides excessive hardness and certain quality issues such as ...