Cobalt, lead, and borax: Preliminary LA-ICP-MS and SEM-EDS analysis of Late-18th- to Mid-19th-century British refined earthenware glazes

Greer, Matthew C.; MacDonald, Brandi L.; Stalla, David

doi:10.1016/j.jasrep.2021.103013

Cited by 2 publications

(2 citation statements)

References 11 publications

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“…To further understand the effects of corrosive medium immersion on the chemical composition of the SS 316L, an energy dispersive spectroscopy (EDS, Thermo-Fischer Scientific, USA) was used. This analysis can show the chemical entities of the samples, which corresponds to the SEM images [42][43][44]. Therefore, some new insights regarding the effects of corrosive medium immersion using NaCl and H2SO4 on the microstructure of SS 316L can be achieved.…”

Section: Characterizationmentioning

confidence: 79%

Effects of immersion in the NaCl and H2SO4 solutions on the corrosion rate, microstructure, and hardness of stainless steel 316L

Wicaksono,

Sutanto,

Ruslan

2023

Res. Eng. Struct. Mater.

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Stainless steel is one of the materials with excellent corrosion resistance, so it is widely applied in various fields such as the chemical industry, aerospace, power generation, and biomedicine. The environmental condition (neutral, acidic, salty, or basic) is the most important thing to be considered prior to choosing palpable stainless steel materials. In this study, the corrosion behaviors of stainless-steel type SS 316L under exposure immersions in salty and acidic environments using sodium chloride (NaCl) and sulfuric acid (H2SO4) solutions were investigated, by referring to a standard method of ASTM G31-72. Scanning electron microscopy (SEM) results revealed that the specimen in NaCl solution exhibited a darker color, and relatively similar shape of cracks are observed. In contrast, the specimen immersed in H2SO4 was observed to have a large diagonal crack. The corrosion rate of SS 316L immersed in NaCl was lower with a value of 0.4260 mpy, compared to that of H2SO4 which was 2.5141 mpy. The Vickers hardness test showed that the hardness value of NaCl immersion was higher than that of H2SO4, which was 6.34% and 1.94%, respectively. It can be concluded that the SS 316L is better used in a salty environment compared to acidic conditions, because the main function of SS 316L is to be able to withstand rust, one of which is caused by chloride compared to other types of stainless-steel.

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Section: Characterizationmentioning

confidence: 79%

Effects of immersion in the NaCl and H2SO4 solutions on the corrosion rate, microstructure, and hardness of stainless steel 316L

Wicaksono,

Sutanto,

Ruslan

2023

Res. Eng. Struct. Mater.

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“…An electron beam striking the specimen generates X-ray signals measured using EDS by determining their energy and intensity distribution. Each element has its distinguished atomic structure, which permits its electromagnetic spectrum to have a specific set of peaks which is the fundamental principle of SEM (19) . Chemical composition can be detected with high precision at a point, line, or area.…”

Section: Energy Dispersive X-ray Spectroscopy (Eds) and Scanning Elec...mentioning

confidence: 99%

Thermal Properties of Graphene based Polymer Nanocomposites

Dandapani¹,

Devendra²

2022

IJST

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Objective: Epoxy is a commonly used material for electronic components packaging, yet its inherent thermal resistance can't meet rising demands. To improve the thermal performance of Epoxy material, the high thermal conductivity of Graphene nanoparticles interspersed into the epoxy matrix. This paper focuses on experimental results on the thermal properties of Graphene-based epoxy composite. Methods: Scanning Electron Microscopy and Energy Dispersive X-Ray Spectroscopy used for elemental analysis. Guarded Comparative Longitudinal Heat Flow Technique, thermogravimetric analysis, digital scanning calorimeter, and thermogravimetric analysis used to determine thermal conductivity, Coefficient of thermal expansion, specific heat capacity and thermal stability as per ASTM standard respectively. Findings: Thermal decomposition temperature enhanced from 170 0 C of pure epoxy to 329 0 C for epoxy with 0.5 wt% of Graphene nanofiller, and it increased with an increase in filler loading, hence proving the thermal stability of composite improved with the addition of graphene nanoparticles. Maximum thermal conductivity of 0.43 W/mK and thermal diffusivity of 0.686 x10 -6 m 2 /s had recorded for 2 wt% of Graphene additives. Linear thermal expansion coefficient and specific heat reduce for the composite material with an increase in filler. Therefore, this indicates heat resistivity improved with minimum heat storage. An increase in stability, conductivity, and diffusivity with the decrease in expansion coefficient and specific heat capacity due to heat proves a favourable factor for thermally conductive material. Novelty: The easy method employed for material preparation, also the use of ultra-low filler content tends to reduce composite cost. Graphene-based Epoxy composites with modified properties represent a conceivable packaging material.

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Cobalt, lead, and borax: Preliminary LA-ICP-MS and SEM-EDS analysis of Late-18th- to Mid-19th-century British refined earthenware glazes

Cited by 2 publications

References 11 publications

Effects of immersion in the NaCl and H2SO4 solutions on the corrosion rate, microstructure, and hardness of stainless steel 316L

Effects of immersion in the NaCl and H2SO4 solutions on the corrosion rate, microstructure, and hardness of stainless steel 316L

Thermal Properties of Graphene based Polymer Nanocomposites

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