1299-86-1Relevant articles and documents
Microstructure and microchemistry of the Al/SiC interface
Peteves,Tambuyser,Helbach,Audier,Laurent,Chatain
, p. 3765 - 3772 (1990)
The characteristics of the Al/SiC interface play a critical role in controlling the properties of SiC-reinforced aluminium composites and aluminium-brazed SiC ceramic joints. Recently, an investigation on the wettability of SiC single crystals by aluminiu
Sato, T.,Usuki, K.,Okuwaki, A.,Goto, Y.
, (1992)
Some properties of aluminum carbide powder prepared by the pyrolysis of alkylaluminum
Itatani,Hasegawa,Aizawa,Howell,Kishioka,Kinoshita
, p. 801 - 804 (1995)
Ultrafine aluminum carbide (Al4C3) powders with crystallite sizes of 3)3: TMAL), triethylaluminum (Al(C2H5)3: TEAL), triisobutylaluminum (Al(i-C4H9)3: TIBAL) at a temperature between 950° and 1100°C. Although the pyrolysis of TMAL produced Al4C3 at 950°C, the pyrolysis temperature of TEAL to produce Al4C3 was raised up to 1100°C. The pyrolysis of TIBAL at 1100°C produced not only crystalline Al4C3 but also amorphous oxycarbide. The TEAL-derived powder had the highest true density (2.89 g-cm-3 or 97% of the theoretical density) among the three kinds of powders.
Contribution to the phase diagram Al4C3-AlN-SiC
Oden,McCune
, p. 1529 - 1533 (1990)
Compositions on the join Al4C3·2AlN-Al4C3·2SiC were investigated using X-ray diffraction and thermal analysis of hot-pressed bodies prepared from materials of various purities. The quaternary phase Al4C3·AlN·SiC was observed in samples prepared from the high-purity elements, but the ternary phases Al4C3·2AlN and Al4C3·2SiC were observed only in samples containing significant impurities. A projection onto the base triangle at 1860°C for the pseudoternary system Al4C3-AlN-SiC was constructed using X-ray diffraction, thermal analysis, and existing information in the literature.
Chernyshova, T. A.,Rebrov, A. V.
, p. 203 - 208 (1986)
Prescott, C. H. jr.,Hincke, W. B.
, p. 2753 (1927)
Effect of particle additions on microstructure evolution of aluminium matrix composite
?uri?inová, Katarína,?uri?in, Juraj,Orolínová, Mária,?uri?in, Martin
, p. 137 - 142 (2012)
The study investigates the influence of different fractions of particles (1, 2.5, 5, 8 and 10 vol.%) on microstructure of the as-extruded Al-Al 4C3 composite as well as on the microstructure evolution at elevated temperatures and after cooling to room temperature. The results indicate that all the materials exhibit a stable microstructure up to 500 °C. The excellent thermal stability is secured by the dispersed nano-particles that strengthen crystallite/grain boundaries by direct interaction of the particles with moving dislocations. In addition, the higher particle contents (8 and 10 vol.%) help to suppress the deformation texture of the hot extruded solids and refine the matrix microstructure to a nanometric scale resulting in a marked enhancing of dislocation density and consequently hardness.
Equation of state of aluminum carbide Al4C3
Solozhenko, Vladimir L.,Kurakevych, Oleksandr O.
, p. 385 - 388 (2005)
Quasi-hydrostatic compression of aluminum carbide, Al4C 3 has been studied to 6 GPa at room temperature using energy-dispersive X-ray powder diffraction with synchrotron radiation. A fit of the experimental p-V data to the Birch equation of state yields the values of the bulk modulus, B0, of 130(5) GPa and the first pressure derivative of the bulk modulus, B′0, of 4.6(9). The compression is found to be anisotropic, with the a-axis being more compressible than the c-axis.
On the synthesis of binary and ternary carbides in a modified domestic microwave oven
Ahlers, Ruth,Ruschewitz, Uwe
, p. 1241 - 1246 (2005)
By modifying a domestic microwave oven binary and ternary carbides were synthesized from the elements in an argon atmosphere. We succeded in preparing CaC2, Ca4Ni3C5 and MgM 3Cx (M = Ni, Co) within several minutes. Well crystallized product powders were obtainend with purities as high as 90% (CaC2, MgNi3Cx). In the case of MgNi3Cx our experiments show that a product with a high carbon content (x = 1) is only synthesized under optimized conditions (magnesium surplus, reaction time). This product exhibits the expected superconductivity with a critical temperature of approx. 6 K. The syntheses and possible structures of MgPdCxH y (x = 0.4-0.8, y = 0.4-2.3) and MgPtC0.06H0.32 are briefly discussed.
Conversion of basic dicarboxylate Al(III) complexes to aluminum carbide under a flow of argon
Joo, Hyeong Uk,Jung, Woo-Sik
, p. 265 - 268 (2008)
The process of conversion of basic dicarboxylate Al(III) complexes Al(OH)(Cn+2H2nO4)·xH2O (n = 2, 3, 6) to aluminum carbide (Al4C3) under a flow of argon was investigated by powder XRD. The thermal decomposition of the glutarate complex (n = 3, AG) at 1100 °C gave a mixture of δ-alumina and carbon. As the calcination temperature was increased, the δ-alumina was first converted into α-alumina, then into aluminum monoxycarbide (Al2OC), and finally into the single phase of aluminum carbide (Al4C3) at 1600 °C. In contrast, the calcination of the succinate (n = 2, AS) complex at 1600 °C gave a mixture of δ-alumina, aluminum tetraoxycarbide (Al4O4C), Al2OC, and Al4C3, while the calcination of the suberate (n = 6, ASu) complex at 1600 °C gave a mixture of α-alumina, Al4O4C, and Al2OC. The difference in the products at 1600 °C was well explained by the relative amount of carbon produced by the thermal decomposition of the complexes. The reaction mechanism for the carburization of alumina to Al4C3 was suggested.
Synthesis and structure of T2-Al2MgC2
Bosselet,Mentzen,Viala,Etoh,Bouix
, p. 91 - 99 (1998)
The T1 and T2 crystalline varieties of the ternary carbide Al2MgC2 were synthesized by reacting graphite particles with Mg-Al melts at 930-1020 K. Below 1000 K, the T1 variety was predominant but little amounts of T2 were also present At 1000 K and above, only the T2 variety was obtained. Assuming a hexagonal close packing of the metal atoms, the crystal structure of T2-Al2MgC2 was determined by Rietveld refinemenent from X-ray powder diffraction data. / Elsevier,.
Fabricating 2.5D SiCf/SiC composite using polycarbosilane/SiC/AI mixture for matrix derivation
Zhu, Yunzhou,Huang, Zhengren,Dong, Shaoming,Yuan, Ming,Jiang, Dongliang
, p. 969 - 972 (2007)
2.5D SiCf/SiC composites were produced by a modified polymer infiltration and pyrolysis process. Fine Al and SiC powders were first infiltrated into large inter-bundle pores. During pyrolytic decomposition of the polymer, the active Al filler reacts with small carbon-bearing polymer fragments, and reactive nitrogen atmosphere to form new phases of carbide or nitride. The volume expansion compensates for polymer shrinkage to a certain degree. The microstructural evolution and mechanical performances were characterized. The result indicates that the addition of Al fillers has significant influence on the mechanical properties of the composites. For the composite with Al loading, a proportional-limit stress of 380 MPa and a maximum stress of 441 MPa are achieved.
