Diamond Growth on a Si Substrate With Ceramic Interlayers

Li, Y. S.; Xiao, C.; Hirose, Akira; Yang, Q.; Shimada, Shiro

doi:10.1111/j.1551-2916.2007.01625.x

Cited by 6 publications

(2 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Meanwhile, the peak was broad, which arose from the fact that some grains on coating reduced their grain size to nanoscale. As the characteristic peak of carbon structure in small size, the weak Raman peak in the vicinity of 1143 cm-1 can be characterized as nano diamond coating [4]. The Raman characteristic peak of graphite at 1534 cm-1 indicated that there still were non-diamond compositions on coating.…”

Section: Experimental Results and Analysismentioning

confidence: 99%

Drawing Die Preparation of Composite Diamond Coating Based on Nb Interlayer

Wang¹,

Yin²

2016

KEM

View full text Add to dashboard Cite

In this paper, the drawing die of cemented carbide WC-Co (Wolfram Carbide-Cobalt) was taken as the substrate which was preprocessed by Murakami solution and aqua regia. DCS (Direct Current Magnetron Sputtering) was adopted to sputter the Nb interlayer in the bore of the drawing die. By using EACVD (Electron Assisted Chemical Vapor Deposition), micro-nanocomposite coating was deposited. Then, specimens were characterized through methods like SEM (scanning electron microscope) and Raman etc. Results indicated that the drawing die showed very smooth coating surface and a compact, uniform structure; the grain size < 50 nm and surface roughness < 10 nm. It can be inferred from the indentation experiment that there was satisfactory adhesion force between coating and the substrate. So, the drawing die can satisfy the working requirement of drawing wires.

show abstract

Section: Experimental Results and Analysismentioning

confidence: 99%

Drawing Die Preparation of Composite Diamond Coating Based on Nb Interlayer

Wang¹,

Yin²

2016

KEM

View full text Add to dashboard Cite

show abstract

“…These studies demonstrate that the nucleation density, growth rate, structure orientation, and adhesion ability of diamond films are influenced by many complex factors, including the reactor types, deposition parameters, surface conditions, and chemical compositions of the substrates to be coated. [5][6][7][8] In particular, it has been widely observed that the growth of high quality diamond on bulk transition metals such as Fe, Co, Ni, and their alloys is difficult primarily due to the initial formation of a graphite intermediate layer on the substrate surfaces. [9][10][11] Nevertheless, a very thin interlayer of such transition metals coated on Si has been found to effectively enhance diamond nucleation.…”

Section: Introductionmentioning

confidence: 99%

Effects of nanoscale Ni, Al, and Ni–Al interlayers on nucleation and growth of diamond on Si

Tang

Yang

et al. 2010

Journal of Vacuum Science &Amp; Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phen

Self Cite

View full text Add to dashboard Cite

show abstract

Poly(naphthalenehydrocarbyne): synthesis, characterization, and application to preparation of thin diamond films

et al. 2010

View full text Add to dashboard Cite

The diamond phase precursor, viz., poly(naphthalenehydrocarbyne) (1), was prepared. Its disordered structure is built of CH fragments with sp 3 hybridized carbon atoms, and arene fragments are inserted in the structure. The use of 1 in the process of diamond layer deposition makes it possible to prepare highly qualitative thin diamond coatings with low roughness and good optical properties.Uniform thin diamond films (DFs) with low surface roughness and nanocrystalline internal structure are de manded for planar electronic devices, protective optical coatings, and micro and nanoelectromechanical sys tems. 2 The most important condition for preparation of such DFs is efficient nucleation, for which the method with ultradispersed diamond (UDD) deposition (usual for thick (>1 μm) 3 DFs) is inappropriate because of low den sity and nonuniform nuclei distribution on the substrate. It is known that the efficiency of UDD application can be enhanced by deposition of a layer of carbon 4 and ceramics SiC, SiN x , and TiSiN (see Ref. 5). However, nuclei gener ation from an appropriate precursor can serve as a radical method for nucleation improvement. Poly(phenylcarbyne) has been used earlier 6-9 for this purpose. However, thus obtained films consisted of diamond like carbon with dia mond inclusions. In the present study, we describe the synthesis of poly(naphthalenehydrocarbyne) (1), viz., a new precursor combining the aliphatic framework and aromatic fragments in its structure. Its structure and po tential for using in diamond layer deposition on a silicon substrate were studied. Results and DiscussionSynthesis of polymer 1. The general method for pre paration of polymers of the poly[(R )carbyne] series (R = Ar, Alk, H), in particular, polymers 2 and 3, is the condensation of heme trihalides by the action of a KNa alloy in the ultrasonic field 10,11 (Scheme 1, reaction a) or by electrolysis 12,13 (Scheme 1, reaction b). Note that these methods have several substantial drawbacks. For exam ple, the use of an explosive KNa alloy in reaction a makes the latter almost impracticable. Reaction b is also very difficult in methodical respect (anaerobic electrolysis ac companied by Cl 2 evolution is required, the product needs purification by prolonged heating with LiAlH 4 , etc. 12,13 ). The product yield in procedures a and b is low, and a strong dependence of the properties of the polymers on many random factors is observed. Thus, search for convenient methods of synthesis of poly(carbynes) and, first of all, poly(hydrocarbyne) (3) as the most promising of them, remains topical. Scheme 1 a. Ultrasonication. b. Electrolysis. R = Ph (2), H (3)

show abstract

Diamond Growth on a Si Substrate With Ceramic Interlayers

Cited by 6 publications

References 32 publications

Drawing Die Preparation of Composite Diamond Coating Based on Nb Interlayer

Drawing Die Preparation of Composite Diamond Coating Based on Nb Interlayer

Effects of nanoscale Ni, Al, and Ni–Al interlayers on nucleation and growth of diamond on Si

Poly(naphthalenehydrocarbyne): synthesis, characterization, and application to preparation of thin diamond films

Contact Info

Product

Resources

About