ChemInform Abstract: Preparation of Dispersed Phase Ceramic Boron Nitride and Aluminum Nitride Composite Coatings by Chemical Vapor Deposition.

ChemInform ◽  
2010 ◽  
Vol 22 (48) ◽  
pp. no-no
Author(s):  
W. Y. LEE ◽  
W. J. LACKEY ◽  
G. B. FREEMAN ◽  
P. K. AGRAWAL ◽  
D. J. TWAIT
Keyword(s):  
Chemical Vapor Deposition ◽  
Boron Nitride ◽  
Aluminum Nitride ◽  
Vapor Deposition ◽  
Composite Coatings ◽  
Chemical Vapor ◽  
Dispersed Phase

Simultaneous Chemical Vapor Deposition of Boron Nitride and Aluminum Nitride

1991 ◽  
Vol 74 (10) ◽  
pp. 2649-2658 ◽  
Author(s):  
Woo Y. Lee ◽  
W. J. Lackey ◽  
P. K. Agrawal ◽  
Garth B. Freeman
Keyword(s):  
Chemical Vapor Deposition ◽  
Boron Nitride ◽  
Aluminum Nitride ◽  
Vapor Deposition ◽  
Chemical Vapor

Microstructural study of dispersed phase ceramic Bn-AlN composite coatings by chemical vapor deposition

1990 ◽  
Vol 48 (4) ◽  
pp. 1026-1027
Author(s):  
G. B. Freeman ◽  
W. Y. Lee ◽  
W. J. Lackey
Keyword(s):  
Chemical Vapor Deposition ◽  
Vapor Deposition ◽  
Composite System ◽  
Composite Coatings ◽  
Chemical Vapor ◽  
Ceramic Composites ◽  
Dispersed Phase ◽  
Reactor Geometry ◽  
Superior Mechanical Properties ◽  
Resistance To Wear

Dispersed phase ceramic composites have recently received much attention because of their superior mechanical properties including fracture toughness, strength, hardness, resistance to wear and erosion. Chemical vapor deposition (CVD) offers one avenue of preparing ceramic composites by simultaneous deposition of multiple phases, i.e. codeposition. The major advantage of preparing dispersed phase ceramic composites by CVD is that mechanical as well as chemical, electrical, optical, and thermal properties of the composites can be favorably tailored by controlling the composites’ composition and microstructure via variation and optimization of CVD process variables such as temperature, pressure, reagent concentration, substrate type, reactor geometry, etc.In this study, the codeposition of boron nitride (BN) and aluminum nitride (AlN) was explored because the BN+AlN composite system (as a deposited coating) offers the promise of tailoring properties such as friction coefficient, hardness, and resistance to wear and erosion for possible radome, electromagnetic window and tribological applications.

Thermodynamic analysis for the chemical vapor deposition of composite coatings from the Al–B–Ti–N–H–Cl–Ar system

1992 ◽  
Vol 7 (3) ◽  
pp. 754-764 ◽  
Author(s):  
T.S. Moss ◽  
John A. Hanigofsky ◽  
W.J. Lackey
Keyword(s):  
Chemical Vapor Deposition ◽  
Partial Pressure ◽  
Thermodynamic Analysis ◽  
Vapor Deposition ◽  
Composite Coatings ◽  
Chemical Vapor ◽  
Deposition Efficiency ◽  
Dispersed Phase ◽  
Three Phase ◽  
Range Of Values

Thermodynamic calculations were performed for chemical vapor deposition in the Al–B–Ti–N–H–Cl–Ar system in order to determine the feasibility of multiphase deposition. Reagent species used were BCl3, AlCl3, TiCl4, NH3, H2, and Ar; B2 was substituted for BCl3 to determine changes in deposition efficiency. Temperature and input molar concentrations were varied over a range of values to establish relationships among solid deposits. Through deposition diagrams, molar efficiency plots, and partial pressure graphs, several two and three phase regions were found to exist. The calculations indicate that the following dispersed phase composites could be prepared: A1N + BN + TiN, BN + TiN, BN + TiB2, BN + TiB2 + TiN, and TiB2 + TiN.

Low Temperature Chemical Vapor Deposition of Hafnium Nitride−Boron Nitride Nanocomposite Films

2009 ◽  
Vol 21 (23) ◽  
pp. 5601-5606 ◽  
Author(s):  
Navneet Kumar ◽  
Wontae Noh ◽  
Scott R. Daly ◽  
Gregory S. Girolami ◽  
John R. Abelson
Keyword(s):  
Chemical Vapor Deposition ◽  
Low Temperature ◽  
Boron Nitride ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Nanocomposite Films ◽  
Hafnium Nitride

scholarly journals Carbon-assisted chemical vapor deposition of hexagonal boron nitride

2D Materials ◽  
2017 ◽  
Vol 4 (2) ◽  
pp. 025117 ◽  
Author(s):  
Ariel Ismach ◽  
Harry Chou ◽  
Patrick Mende ◽  
Andrei Dolocan ◽  
Rafik Addou ◽  
...  
Keyword(s):  
Chemical Vapor Deposition ◽  
Boron Nitride ◽  
Vapor Deposition ◽  
Hexagonal Boron Nitride ◽  
Chemical Vapor
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