Electrodeposition of nickel-nitride composite coating: Effects of boric acid on structure and mechanical properties

Budi, Esmar; Theresia, Rentha; Sugihartono, Iwan; Indrasari, Widyaningrum; Ermadiana, Yulia; Syafindra, D

doi:10.1063/1.5132683

Cited by 2 publications

(1 citation statement)

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“…The di erence in yield at each concentration can be made possible due to the content of the material given in the manufacture of di erent electrolyte solutions. Basically, every material in an electrolyte solution has di erent bene ts, where NiSO 4 acts as the main source of nickel ions, NiCl 2 has a role to help corrosion and increase the di usion coe cient of nickel ions, while H 3 BO 3 as a bu er (Birlik and Azem, 2018;Bouhidel and Rumeau, 2000;Budi et al, 2019). In this study, the amount of content of each ingredient made increases from C1 to C3 (according to table 1), but H 2 O is made constant so that the most distinguishing of the three is the thickness of the mixture of these ingredients.…”

Section: Resultsmentioning

confidence: 99%

The Effect of Electrolyte Concentration on The Sensitivity of Low-Temperature Sensor Performance of Cu/Ni Film

Setiamukti

Khusnani²,

Toifur³

2020

sci. technol. indones.

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Increased export-import activities on fresh food commodities in the international market led to the idea of developing new technologies in the form of cryogenic freezers using liquid nitrogen (LN2). Along with the development of preservation methods using liquid nitrogen media, we need a tool that is able to detect changes in low temperatures in LN2 storage flasks that have economic value. Therefore the purpose of this research is to make a low-temperature sensor with copper and nickel material that has an economical price. The Cu/Ni film sensor is made with an electroplating method assisted by an external magnetic field of 200 G which is installed parallel to the deposition current. The Cu/Ni film was developed by varying the concentration of the electrolyte solution. The electrolyte solution used in the deposition process consisted of a mixture of H3BO3, NiSO4, NiCl2, and H2O. Furthermore, the Cu/Ni film that was made was tested on the LN2 medium to measure its sensitivity value in response to changes in temperature. The results showed that the Cu/Ni film sensor could detect changes in the low temperature in LN2. The results of data analysis showed that the curve relationship between voltage and temperature in the sample with the 2nd concentration (C2) had the highest relationship to influence each other between the voltage and temperature variables, and the sample had the highest sensitivity value compared to the others.

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Section: Resultsmentioning

confidence: 99%