Mikrotrab Iswed B4C Boron Carbide Trab Għal Kisi taċ-ċeramika
Il-karbur tal-boron, alias djamant iswed, huwa ġeneralment trab ikkulurit. Huwa wieħed mit-tliet materjali l-aktar iebsa magħrufa (it-tnejn l-oħra huma djamant u nitrur tal-boron kubiku) u jintuża f'korazza ta 'tank, ilbiesi li ma jgħaddix balal u ħafna applikazzjonijiet industrijali.Jintuża f'materjali reżistenti għall-ilbies, fażi rinfurzata taċ-ċeramika, speċjalment f'armatura ħafifa, assorbenti tan-newtroni tar-reattur, etc.
Isem ieħor | B2-C、B4C、djamant iswed、karbur tat-teraboron |
CAS NO. | 12069-32-8 |
Formula kimika | B4C |
Massa molari | 55.255 g mol |
Dehra | Trab iswed |
Densità | 2.52g/ċm (solidu) |
Punt tat-tidwib | 2350°Ċ (2623.15 K) |
Punt tat-togħlija | > 3500°C (>3773.15 K) |
Solubilità fl-ilma | Insolubbli |
Struttura tal-kristall | romboedriku |
Periklu ewlieni | harmfu, Irritanti |
Daqs taż-żrar | Daqs | Kompożizzjoni Kimika | |||
B% | C% | Fe2O3% | BC% | ||
60# | 315-215 | 78-81 | 17-22 | 0.2-0.4 | 97-99 |
80# | 200-160 | ||||
100# | 160-125 | ||||
120# | 125-100 | 78-80 | 17-22 | 0.2-0.4 | 96-98 |
150# | 100-80 | ||||
180# | 80-63 | ||||
240# | 60-50 | 77-80 | 17-22 | 0.3-0.5 | 96-97 |
280# | 50-40 | ||||
320# | 40-28 | ||||
W40 (360#) | 35-28 | 76-79 | 17-21 | 0.3-0.6 | 95-97 |
W28 (400#) | 28-20 | ||||
W20 (500#) | 20-14 | 75-79 | 17-21 | 0.4-0.8 | 94-96 |
W14 (600#) | 14-10 | ||||
W10 (800#) | 10-7 | 74-78 | 17-21 | 0.4-0.9 | 92-94 |
W7 (1000#) | 7-5 | ||||
W5 (1200#) | 5-3.5 | 74-78 | 17-21 | 0.5-0.9 | 90-93 |
W3.5(1500#) | 3.5-2.5 | ||||
-325# | <45 | 74-79 | 17-22 | <0.3 | 92-97 |
0-44μm | <45 | ||||
-200# | <90 | 74-80 | 17-22 | <0.3 | 94-97 |
-100# | <150 | ||||
0-25μm | <25 | 74-79 | 17-21 | <0.3 | 92-96 |
0-10μm | <10 | 74-78 | 17-21 | <0.3 | 91-95 |
60#-150# | 250-75 | 77-81 | 17-22 | <0.3 | 95-98 |
40#-120# | 315-106 | ||||
30#-60# | 355-250 | ||||
Karbur tal-boron | 355-250 | 92-80 | 17-23 | <0.3 | 90-99 |
1. Materjal tat-tħin tal-partiċelli ta 'grad għoli;
2. Agħmel ċeramika kimika, ħġieġ, jew żennuna;
3. Reattur nukleari u materjal tal-ilqugħ;
4.Produce armatura ta' prova tal-balal;
5. Ittejjeb il-lift tas-servizz ta 'partijiet mekkaniċi;
6. Bħala mili addittiv għal materjali kimiċi tal-boron;
7. Mili essenzjali għal materjali refrattarji.