Thin Films

Wahl, G.; Davies, Paul B.; Bunshah, R.F.; Joyce, B. A.; Bain, Colin D.; Wegner, Gerhard; Walsh, Francis C.; Hieber, K.; Sundgren, J.‐E.; Bachmann, Peter K.; Miyazawa, Shintaro; Thelen, Alfred; Strathmann, H.; Edler, Karen J.

doi:10.1002/14356007.a26_681.pub2

Cited by 1 publication

(2 citation statements)

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“…The input of H 2 was calculated based on a typical gas composition of CH 4 and H 2 at 1 and 99 vol %, respectively. 54 It was assumed that all CH 4 input reacts into diamond in this process and that the H 2 (both from the input gas and from reaction R2) becomes vented to air via an exhaust system as indicated by Wahl et al 55 After the MWCVD synthesis, a diamond film with a specific thickness has been deposited on the substrate. The substrate was included in the unit-process data in this study as a part of the final product, i.e., a diamond film on a Si substrate.…”

Section: ■ Calculationsmentioning

confidence: 99%

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Life Cycle Assessment of Synthetic Nanodiamond and Diamond Film Production

Furberg,

Arvidsson

2023

ACS Sustainable Chem. Eng.

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Diamond possesses extraordinary properties, including extreme hardness, thermal conductivity, and mechanical strength. Global industrial diamond production is dominated by synthetic diamond, with important commercial applications in hard coatings and semiconductors. However, the life cycle impacts of synthetic diamond materials are largely unknown. The main aim of this study is to conduct the first detailed life cycle assessments of the typical production routes for nanodiamond and diamond film, which are detonation synthesis and microwave chemical vapor deposition, respectively. The functional units were set to 1 g nanodiamond and 1 cm 2 diamond film. A limited number of inputs dominate the assessed impacts: explosives and cooling water for nanodiamond production, and electricity and substrate for diamond film production. Diamond film manufacturers can reduce their global warming, freshwater eutrophication, and terrestrial acidification impacts by 62−71% by sourcing wind or solar instead of global average electricity. However, this comes at the expense of increased mineral resource scarcity impacts at 57−73%. A comparison between nanodiamond and synthetic diamond grit shows that the grit's global warming impact is about 5 times higher, suggesting that nanodiamond is environmentally preferable. The ready-to-use unitprocess data from this study can be applied in future studies of products containing these materials.

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Section: ■ Calculationsmentioning

confidence: 99%

“…The input of H 2 was calculated based on a typical gas composition of CH 4 and H 2 at 1 and 99 vol %, respectively . It was assumed that all CH 4 input reacts into diamond in this process and that the H 2 (both from the input gas and from reaction R2) becomes vented to air via an exhaust system as indicated by Wahl et al…”

Section: Calculationsmentioning

confidence: 99%

Life Cycle Assessment of Synthetic Nanodiamond and Diamond Film Production

Furberg,

Arvidsson

2023

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

show abstract

Thin Films

Cited by 1 publication

References 155 publications

Life Cycle Assessment of Synthetic Nanodiamond and Diamond Film Production

Life Cycle Assessment of Synthetic Nanodiamond and Diamond Film Production

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