نتایج جستجو برای: cu and mo dissolution

تعداد نتایج: 16848435  

حسین حاجی بهرامی محمود نیلی احمد آبادی مهدی اوصیاء

انجام عملیات حرارتی آستمپرینگ پی در پی بر روی چدن نشکن پرمنگنز نشان داد که خواص مکانیکی این چدن را با انجام این نوع عملیات تا حد بسیار زیادی می توان افزایش داد. به منظور بررسی تأثیر این عملیات حرارتی بر دیگر آلیاژهای چدن نشکن , چدن نشکن با ترکیب Ni-Cu-Mo بعنوان نمونه انتخاب گردید. نمونه های ضربه و کشش از آلیاژ فوق تهیه شده و کلیه نمونه ها در کوره حمام نمک در دمای 900 به مدت 90 دقیقه آستینه ...

2005
R. W. Mullen W. R. Raun N. T. Basta J. L. Schroder K. W. Freeman

Forages that accumulate excessive molybdenum (Mo) from excessive land application of Mo can cause molybdenosis, a copper (Cu) induced deficiency in ruminants. Limited information is available on the effect of land-applied biosolids, Mo content, and quality of winter wheat forage (Triticum aestivum L.). The objectives of this study were (1) to determine the effect of biosolids application on tis...

Journal: :journal of ultrafine grained and nanostructured materials 2014
mahsa barzegar vishlaghi abolghasem ataei

although cu and fe are immiscible under equilibrium conditions, they can form supersaturated solid solutions by mechanical alloying. in this paper, nano-structured of the metastable cu-fe phase containing 10, 15, 20 and 25% wt fe were synthesized by intensive ball milling for 15h, in order to achieve a solid solution of fe in cu. the phase composition, dissolution of the fe atoms into the cu ma...

Journal: :Arabian Journal of Geosciences 2021

Abstract Using observations and descriptions of drilling cores, image logging, microscopic section, argon ion polishing field emission scanning electron microscopy, X-ray diffraction, whole-rock trace element analysis, the study shale reservoir diagenesis space types in Fengcheng Formation Mahu Sag was conducted. Considering contents their ratios (Sr/Ba, V/Ni, Th/U, V/(V + Ni), U/Mo, Sr/Cu), is...

Journal: :international journal of environmental research 0
m. kargar faculty of natural resources, department of environment, university of tehran, karaj, iran n.a. khorasani faculty of natural resources, department of environment, university of tehran, karaj, iran m. karami faculty of natural resources, department of environment, university of tehran, karaj, iran g.h. rafiee faculty of natural resources, department of fisheries, university of tehran, karaj, iran r. naseh national iranian copper industry company (nicico), research and development center, kerman, iran

the contents of as, cd, cu and mo were determined in soil surrounding meyduk tailings dam based on 21 surface soil samples. assessment of toxic element pollution in studied soil samples needs knowledge of pre-anthropogenic metal concentration to act as a reference against which measured values could be compared. estimating the background values was executed by sampling rocks adjacent to soil sa...

Although Cu and Fe are immiscible under equilibrium conditions, they can form supersaturated solid solutions by mechanical alloying. In this paper, nano-structured of the metastable Cu-Fe phase containing 10, 15, 20 and 25% wt Fe were synthesized by intensive ball milling for 15h, in order to achieve a solid solution of Fe in Cu. The phase composition, dissolution of the Fe atoms into the Cu ma...

ژورنال: مهندسی معدن 2013
فرید مر کبری اسماعیلی

کانسار مس پورفیری سونگون در استان آذربایجان شرقی و در 75 کیلومتری شمال غرب شهرستان اهر واقع شده است. به علت فعالیت‌های معدنکاری، رودخانه‌های این منطقه (سونگون چای، پخیرچای، ایلگینه چای و زرنکاب چای) در معرض آلودگی به فلزات بالقوه سمی از جمله Cu، Mo، Pb، Zn و Ni قرار دارند. به همین دلیل برای تعیین میزان آلودگی رسوبات این رودخانه‌ها به فلزات سنگین، 27 نمونه رسوب از رودخانه‌های محدوده کانسار مس سو...

Journal: :Dalton transactions 2015
Hanxing Chen Teng Tu Ming Wen Qingsheng Wu

New Cu2O-on-Cu nanowires (NWs) are constructed to develop the visible-light-driven activity of photocatalysts via the facile self-assembly of Cu2O nanoparticles (NPs) on a Cu NW surface assisted by a structure director, followed in situ reduction. In the resultant Cu2O-on-Cu NWs, the Cu2O NPs, with a diameter of 10 nm, show good distribution on the 50 nm-sized Cu single-crystal NWs. Owing to th...

Journal: :Journal of animal science 2014
V Dermauw A De Cuyper L Duchateau A Waseyehon E Dierenfeld M Clauss I R Peters G Du Laing G P J Janssens

Copper deficiency is a commonly diagnosed problem in cattle around the globe. In Jimma, Ethiopia, 8 zebu (Bos indicus) and 8 zebu ×: Holstein Friesian cross (Bos taurus ×: Bos indicus) heifers were used in an 11-wk study to investigate breed type differences and effects of Cu deficiency on concentrations of trace elements in plasma and edible tissues as well as mRNA expression of Cu-related gen...

Journal: :Minerals 2021

Jiama is a super-large porphyry copper–polymetallic deposit located in the Gangdese metallogenic belt of southern Tibet. The consists combination polymetallic skarn, Cu–Mo mineralization at contact between Porphyry and hornfels, distal Au fault. current metal reserves are 7.4 Mt Cu, 0.6 Mo, 1.8 Pb–Zn, 6.65 Moz Au, 360.32 Ag, with skarn to porphyry–hornfels host-rock ratio ~3:1. Based on detaile...

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