Boron Carbide and Silicon Carbide Powders and Compounds

Boron carbide powders and compounds are available in multiple abrasive grit size choices from F10/30 to F1500 and are suitable for the precision lapping and polishing of many …

In situ synthesis and characterization of ceramic reinforced …

 — 2.1 Powder treatment. The powder materials used in this study were B 4 C powder (99.7% purity) (Atlantic Equipment Engineers Inc., Upper Saddle River, NJ, USA) and Inconel 718 powders (99.7% purity) (Carpenter Powder Products Inc., Bridgeville, PA, USA). A stainless steel 304 of 6.65 mm thickness was used as the substrate. The …

Preparation and Abrasive Properties of Eutectic Compositions in …

 — A high-density ceramic material (97% of theoretical density) was obtained by hot pressing of ball-milled powders W2B5, ZrB2, SiC and B4C with holding for 15 minutes at a temperature of 1850°C and ...

(PDF) Properties and Corrosion Resistance of AISI …

Properties and Corrosion Resistance of AISI H13 Hot-Work Tool Steel with Borided B4C Powders . × ... 1.0 1.0 0.40 0.15 0.35 1.0 Balance Balance 13 Metals and Materials International Fig. 1 SEM view of the used B4C …

Effect of counterbody on tribological properties of B4C–SiC …

 — Pressureless sintered B4C–SiC composite ceramics were subjected to dry sliding friction and wear against Al2O3, Si3N4 and SUJ2 bearing steel counterbodies at 5 N, 10 N and 20 N. Friction ...

Mechanical properties and microstructure evolution of …

 — Additive-free boron carbide (B4C) – silicon carbide (SiC) ceramic composites with different B4C and β-SiC powders ratio were densified using the high-pressure "anvil-type with hollows ...

The effects of double ceramic particles (B4C-SiC) on the …

 — The copper-based powder metallurgy reinforced by double ceramic particles (B 4 C-SiC) were prepared by powder metallurgy route and the self-made carbon-ceramic composite was used as the friction disc. The effects of different proportions B 4 C-SiC on performance, microstructure, and friction-wear mechanisms were examined. The result …

Synthesis and Properties of Ceramics in the SiC–B4C–MeB2 …

 — Two different compositions were produced by hot-pressing commercially available ZrB2, SiC, and B4C powders. Using a Vickers' indentation load of 9.8 N, measured hardness was ∼20 GPa for a ...

Abrasive wear behaviour of hard powders filled glass …

 — Semantic Scholar extracted view of "Abrasive wear behaviour of hard powders filled glass fabric–epoxy hybrid composites" by N. Mohan et al. ... adhesive wear of woven E-Glass fabric reinforced composites filled with aramid, B4C and mica particles at 0.5% wt. and 1.5% wt. ratios were carried ... (SiC) particulate fillers incorporation on two ...

Preparation and properties of ceramics in the SiC-B4C-MeB2 …

 — Dense SiC-TiB2 composites were prepared by reactive hot-pressing of spray-dried SiC-TiO2-B4C-C powder mixtures. The composite containing 20vol% TiB2 exhibited an average four-point flexural ...

Processing and characterization of B4C–SiC–Si–TiB2 …

 — In the present research, boron carbide powders (d 50 ∼ 50 μm), supplied by Electro Abrasive Corporation, USA and Ti powders ... B4C–SiC–Si–TiB2 composite was synthesized by a two step heating in vacuum. The density and average hardness with and without TiB2 particle reinforcement were found to be 2.67 g/cm3 and 25 GPa, and 2.54 …

Properties and Information about Boron Carbide

28 rows — Boron Carbide (B4C) is one of the hardest materials known to man. As such, many of its applications revolve around its wear resistance including such uses as …

Boron Carbide Abrasive Grit & Powders

Boron Carbide has hardness (9.3 - 9.5 Mohs) and chemical resistant properties similar to Diamond - thus being nicknamed "Black Diamond". You may order Standard B4C powders on this page. Our standard, abrasive grade powders …

Boron Carbide (B 4 C)

Its outstanding hardness makes it a suitable abrasive powder for lapping, polishing and water jet cutting of metals and ceramics. The combination of low specific weight, high hardness and reasonable toughness makes it a …

Boron Carbide Powders

Boron Carbide Powder Background. Boron Carbide is a high performance abrasive material with chemical and physical properties similar to diamonds, such as, chemical resistance and hardness. Boron carbide's extra hardness gives it the nickname "Black Diamond" (It ranks third after diamond and boron nitride) and is one of the leading grinding materials.

Sol-Gel synthesis and characterization of SiC–B4C nano …

 — In the present research, SiC–B4C nano powders were synthesized through sol–gel process in water–solvent–catalyst–dispersant system. In order to evaluate the formation mechanism of the ...

Tribological Characterization of SiC and B4C

 — A B4C‐SiC composite without annealing and two B4C‐SiC composites followed by annealing at 1000 ℃ and 1200 ℃ for 1 h in air, respectively, were prepared.

Construction and toughening mechanism of B4C@TiB2 core …

 — Request PDF | Construction and toughening mechanism of B4C@TiB2 core–shell structural units inside the SiC ceramic | Core–shell structural B4C@TiB2 composite powders were synthesized via the ...

Low-Temperature Pressureless Sintering of alpha-SiC with Al4C3-B4C …

 — Various combinations of Al4C3, B4C, and carbon were used as sintering aids for pressureless sintering of alpha-SiC (94% 6H+ 6% 15R) powders. Densification behavior, polytypic transformation, microstructural development, and mechanical properties were studied. Appropriate amounts of Al4C3-B4C-C additions could facilitate alpha-SiC …

Boron Carbide (B4C)

The material is sought after due to its high hardness, abrasive wear resistance, fracture toughness, chemical inertness, and its' high neutron absorbing cross section which is important to the nuclear industry. Boron Carbide powders can be used for reaction bonded, hot-pressed or sintered ceramic applications.

3M™ Boron Carbide Abrasive Powders

3M™ Boron Carbide Abrasive Powders are made of high-purity boron carbide, which is sometimes called "black diamond" for its hardness and chemical resistance. 3M boron carbide abrasive powders are suitable for lapping and sawing of a wide variety of technical ceramics (alumina, zirconia or silicon carbide), tungsten carbide, sapphire, synthetic …

Mechanical properties and tribological characteristics of B4C-SiC

 — In recent years, some scholars have found that, the mechanical properties of B4C ceramics can be improved by introducing SiC phase into the ceramic matrix [Citation 16–18]. Chawon [ Citation 19 ] fabricated the B 4 C-preceramic polymer derived SiC composite, and found that the mechanical properties of the composite were very closed …

Powder Metallurgy and Metal Ceramics, Vol. 39, Nos. 5 …

work [11], done using abrasive SiC powders containing a significant amount of impurities (Fe, O, C), we showed that at room temperature the mechanical properties of the ceramics vary nonmonotonically and reach a maximum at 20-30 vol. % of ... and B4C powders contained up to 0.5 mass % Fe. The SiC powders were significantly different in the ...

Properties and Information about Boron Carbide

Sol-Gel synthesis and characterization of SiC–B4C nano …

 — In the present research, SiC–B 4 C nano powders were synthesized through sol–gel process in water–solvent–catalyst–dispersant system. In order to evaluate the formation mechanism of the product during sol-gel process, TEM, SEM, DTA/TG, BET, XRD, FTIR and DLS analysis methods were employed. The nanometric size of …

Silicon Carbide Abrasive Grains, Grits, & Powders

Silicon Carbide is very hard coming in at a 9.1 on the Mohs scale. The only two common abrasive materials harder than SiC are diamonds and boron carbide. Due to its much lower cost than diamond or B4C, it is widely used for grinding nonferrous materials, finishing tough and hard materials, as well as filling up ceramic parts.

3M Boron Carbide | 3M United States

Extremely hard and wear-resistant 3M™ Boron Carbide materials and custom components. Sandblasting. Abrasive lapping. Machining ultra-hard metals, ceramics and synthetic …

Characterization of B4C-SiC ceramic composites prepared by ultra …

 — Two fully-dense B4C–SiC composites were fabricated by spark-plasma sintering (SPS) from B4C+Si powders, one superhard (i.e., ~28.7(8) GPa) with abundant SiC by SPS of B4C+20vol.%Si at 1400°C ...

Densification of additive-free B4C-SiC composites by spark …

 — The B 4 C-SiC composites were obtained through densification of B 4 C and β-SiC powders with different ratios using Spark Plasma Sintering (SPS). Thermal treatment was conducted in the 1850–2000 °C temperature range under pressure of 70 MPa. Starting powder ratio effect on sintering behavior, relative density, microstructural development, …

Improving fracture toughness of B4C – SiC composites by …

 — 0–20 wt% TiB2 added to B4C-SiC composites and evaluated the microstructure, elastic and mechanical properties. ... Since B 4 C is the hardest material amongst the starting powders, the hardness value of the sample without TiB 2 is the highest. ... a new crystalline abrasive and wear-resisting product. Trans. Electrochem. …