Growth of polycrystalline diamond films on stainless steel without external barrier layers using oxy-acetylene flame

Kumar, Satyendra; Malhotra, Manju

doi:10.1016/s0925-9635(98)00151-4

Cited by 12 publications

(5 citation statements)

References 18 publications

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“…Furthermore, a weak broad band at 1506 cm~1, the characteristic of amorphous carbon, is also detected. It should be noted that the large contribution of the non-diamond carbon modes in the spectrum can be related to the fact that the scattering efficiency of sp2 carbon is 50 times higher than that of sp3 carbon [16].…”

Section: Gowri Et At /D Iam Ond and Related Materials 15 (2006) 4 9mentioning

confidence: 99%

Direct deposition of diamond films on steel using a three-step process

Gowri¹,

Li²,

Schermer³

et al. 2006

Diamond and Related Materials

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Diamond coatings were successfully deposited on tool steel substrates without using any external diffusion barrier layers. The diamond film deposition was performed in a hot filament chemical vapour deposition (HFCVD) reactor. In the first step, a high substrate temperature and a high methane percentage were used to achieve a faster critical carbon concentration and hence a shorter incubation time for diamond nucleation. Subsequently, the substrates were taken out of the reactor and subjected to ultrasonic scratching in diamond slurry in order to increase the diamond nucleation density. Then the final deposition was performed in the reactor under typical diamond growth conditions. X-ray diffraction analyses showed that Fe3C was the dominant carbide phase formed on the steel surface after the first step. The carbides produced in the first step act as a diffusion barrier for both iron and carbon. Thus, they accelerate the diamond nucleation and help further diamond growth. Scotch tape adhesion tests showed that the diamond film adheres well to the substrate.

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Section: Gowri Et At /D Iam Ond and Related Materials 15 (2006) 4 9mentioning

confidence: 99%

Direct deposition of diamond films on steel using a three-step process

Gowri¹,

Li²,

Schermer³

et al. 2006

Diamond and Related Materials

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“…This method has the potential for continuous production in large scales at reduced costs compared to other methods [58][59][60]. To date, in the scientific literature, works on the synthesis of CNTs, CNFs, and diamond-like carbons by the oxy-acetylene torch method are presented [55,57,61]. The major difference between fabrication of CNWs and other carbon nanomaterials by the oxyacetylene torch method is in the synthesis parameters.…”

Section: Introductionmentioning

confidence: 99%

“…The synthesis parameters were an acetylene to oxygen ratio of 1.3 to 1.45, and the distance between the substrate and the flame torch was 6 mm to 10 mm. In the paper, [61] polycrystalline diamond films were grown on AISI 304 stainless steel substrate by using the oxyacetylene torch. In this work, the gas flow rate was adjusted so that the distance from the nozzle tip to the substrate was 50 mm to 60 mm.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of carbon nanowalls by oxy-acetylene torch method

ZHUMADILOV,

KENZHEGULOV,

NEMKAYEVA

et al. 2023

J Met Mater Miner

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This work presents a relatively new method for the synthesis of carbon nanowalls (CNWs) based on oxy-acetylene torch as a function of deposition time. The morphological and structural properties of the obtained CNW films were studied by scanning electron microscopy and Raman spectroscopy. Changes in the morphology and structural properties of the CNW films depending on the synthesis time were revealed. Shorter growth times lead to the formation of thinner CNW films with a dense labyrinth-like structure, while longer growth times lead to thicker CNW films with a petal-like structure. In addition, this study opens up the possibility of synthesizing CNWs on a production scale, since the proposed method is relatively environmentally friendly and efficient from an economical point of view.

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“…Research on the growth of diamond films on steel surfaces has been going on intensively because of their potential applications in high performance machining industry. Various types of interlayers have been investigated addressing the problems that are generally involved in obtaining diamond coating on steel substrates [1][2][3][4][5]. In our previous work, it was found that under certain process conditions the use of chromium nitride (CrN), obtained by Physical vapor deposition (PVD) technique, as an interlayer can be successful to obtain adherent diamond coatings on steel [6,7].…”

Section: Introductionmentioning

confidence: 99%