نتایج جستجو برای: elecroless ni p

تعداد نتایج: 1316371  

A. Baibordi, A. Dehghan K. Amini, M. Bina

In this research, tribological characteristics of Ni-P electroless coating and double-layered Ni-P/Ni-B electroless coating were studied. For this purpose, Ni-P electroless coating with 25 μm thickness was initially applied to the surface of steel Ck45 samples; then, a double-layered Ni-P/Ni-B electroless coating, including inner layer of Ni-P with 15 μm thickness and outer layer of Ni-B with 1...

2009
M. A. Ivanova

Introduction: Isheyevo is a metal-rich carbonaceous chon-drite with metal-rich and metal-poor lithologies that are most similar to the CBb and CH chondrites, respectively [1]. All consist of similar components – Fe,Ni metal, chondrules, refractory inclusions, amoeboid olivine aggregates and heavily hydrated lithic clasts. We continued our investigation of these components of Isheyevo and found ...

Journal: :Materials Research-ibero-american Journal of Materials 2022

Although micro-arc oxidation (MAO) coatings are widely used for anti-wear protection of metals, they usually contain lots pores and exhibit high coefficient friction. In this work, porous MAO consisting Al2TiO5 were fabricated on the titanium substrate, then Ni-P Ni-P-polytetrafluoroethylene (PTFE) deposited via electroless plating to fill improve tribological performance. Electroless has wear ...

2014
Mario Di Gioacchino Luisa Ricciardi Ornella De Pità Mauro Minelli Vincenzo Patella Susanna Voltolini Valerio Di Rienzo Marina Braga Enzo Ballone Rocco Mangifesta Domenico Schiavino

BACKGROUND This is the first randomized, double-blind, placebo-controlled trial (EUDRACT No. 2009-013923-43) evaluating nickel oral hyposensitizing treatment (NiOHT) in patients with "systemic nickel allergy syndrome" (SNAS), characterized by Ni-allergic contact dermatitis and systemic reactions after eating Ni-rich food. METHODS Adults with positive Ni-patch test, who reported symptoms sugge...

2014
P. G. Venkatakrishnan S. S. Mohamed Nazirudeen Sankara Narayanan

The Ni-B-P alloy coatings were made autocatalytically (electroless) using an alkaline plating bath with nickel chloride hexahydrate (NiCl2.6H2O) as the source of nickel ions, sodium borohydride (NaBH4) and sodium hypophosphite (NaH2PO2) as reducing agents and source of boron and phosphorous ions, respectively. The effects of bath concentrations on the plating rate, composition of coating, surfa...

Journal: :Journal of palliative medicine 2012
Wadih Rhondali David Hui Sun Hyun Kim Kelly Kilgore Jung Hun Kang Linh Nguyen Eduardo Bruera

BACKGROUND Clinicians typically rely on their own or the nurses' clinical impression (NI) of symptoms rather than patient self-reports. It is unclear whether these means of assessment yield similar results. OBJECTIVE To prospectively compare patient-reported symptoms on a modified Edmonton Symptom Assessment System (ESAS) with NI scores. METHODS Consecutive patients with advanced cancer adm...

2007
Ahmed Sharif Y. C. Chan

In this study, interfacial reactions of electrolytic Ni and electroless Ni(P) metallization of the ball-grid-array (BGA) substrate with the molten n–9Zn (wt.%) eutectic solder alloy were investigated, focusing on the shear strengths and the identification of the intermetallic compound IMC) phases at various reflow periods. Zn-containing Pb-free solder alloys were kept in molten condition (240 ◦...

2014
Hui Liu Jin Zhao Yubin Xing Meng Li Mingmei Du Jijiang Suo Yunxi Liu

BACKGROUND Nosocomial infection (NI) causes prolonged hospital stays, increased healthcare costs, and higher mortality among patients with hematological malignancies (HM). However, few studies have compared the incidence of NI according to the HM lineage. OBJECTIVE To compare the incidence of NI according to the type of HM lineage, and identify the risk factors for NI. METHODS This prospect...

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