Results 111 to 120 of about 16,292 (270)
Influence of Refining Slag on Oxygen Content and Inclusions in Bearing Steel
Teshugang, 2008 The infuence of ingredient of refining slag(47～64CaO,13～23SiO215～25Al2O35～10MgO,0~ 8CaF2CaO/SiO2=2.0~4.5) on oxygen content and inclusions in 0.95C-1.50Cr CCr15 bearing steel has been tested and studied by MoSi2electrical resistance furnace with MgO ...
阮小江 +4 more
doaj
Archaeometry, EarlyView.Abstract Focusing on Southern Europe, this article sheds light on the mining landscape of the early Middle Ages. Based on the current state of historical and archaeological knowledge, the article raises a number of questions that can be extended to other European regions.
Nicolas Minvielle Larousse
wiley +1 more source
Dynamic modelling of BOF process : comparison of model performance with the plant data [PDF]
In a top blowing steel making process (BOF), the refining reactions of C, Si, Mn and P are related to several physicochemical phenomena occurring in different zones (e.g.
Brooks, G. A. +5 more
core
Archaeometry, EarlyView.Abstract This paper presents the first direct evidence of the slags produced during the cementation alloying process of Cu with speiss inside ceramic crucibles, thus representing Cu alloying with As in Middle Kingdom Egypt. The settlement deposits from the Middle Bronze Age were excavated on Elephantine Island, within modern Aswan.
Jiří Kmošek, Martin Odler
wiley +1 more source
Critical Review of East Asia – South America Trade [PDF]
, 2013 There is a general consensus that trade between East Asia and South America is becoming increasingly important. However, we know little about the actual dynamic development of this inter-regional trade.
Hamanaka, Shintaro, Tafgar, Aiken
core +1 more source
The Provenance of Silver in the Viking‐Age Hoard From Bedale, North Yorkshire
Archaeometry, EarlyView.ABSTRACT The acquisition of silver was a key motive propelling the Viking expansion out of Scandinavia; identifying the sources of Viking silver during the early part of the Viking Age can provide critical insights into the relative significance of western European and eastern, Islamic wealth in the Viking expansion.
Jane Kershaw +5 more
wiley +1 more source
The First Archaeomagnetic Age at Tiwanaku and Implications for Dating Andean Metallurgical Furnaces
Archaeometry, EarlyView.ABSTRACT This paper presents the first archaeomagnetic dating at Tiwanaku (Andean Altiplano). We compared the geomagnetic field values recorded by a metallurgical furnace against an updated SHAWQ2k‐SH global model and a regional intensity curve, both of which include, for the first time, high‐quality intensity data from the Southern Hemisphere. Results
Judit del Río +6 more
wiley +1 more source
Teshugang, 2007 With optimized process such as dry masonry brickwork joint ≤0.5 mm,MgO content in magnesium-carbon brick ≥75%,MgO content in refining slag≤20%,VD treating time decreasing from 45 min to 30 min and refining time with low viscosity slag decreasing from 45 ...
肖卫军
doaj
MetalsAccording to the production process requirements of oriented silicon steel in a certain steel mill, optimization of the slag composition ratio is studied through thermodynamic calculations. The CaO-SiO2-Al2O3-FeO-MgO slag system is studied using FactSage
Ting Liu +3 more
doaj +1 more source
Archaeometry, EarlyView.ABSTRACT Twelve metal artifacts from recent excavations at the Sasanian archaeological site of Jahāngir in western Iran have been analyzed. These items include both decorative and utilitarian artifacts. The samples were examined using micro‐X‐ray fluorescence (μ‐XRF), scanning electron microscopy with energy‐dispersive X‐ray spectroscopy (SEM‐EDS), and
Omid Oudbashi +2 more
wiley +1 more source