sic purity

Freier Kohlenstoff in Siliziumkarbid: Warum es wichtiger ist, als Sie denken
Free carbon in silicon carbide is a frequently overlooked impurity that causes measurable problems in sintering, electrical performance, refractory durability, and abrasive consistency. This article explains the formation mechanisms, grade-specific thresholds, measurement methods, and procurement practices engineers need to control it effectively.
Mehr lesen Freier Kohlenstoff in Siliziumkarbid: Warum es wichtiger ist, als Sie denken
What the SiC Purity Certificate Actually Tells You — and What It Doesn’t
A supplier certificate showing 98.5% SiC purity tells only part of the story — free carbon, polytype ratio, and trace metals below 100 ppm often go unreported yet directly drive refractory failures and sintering defects. This article explains what each analytical method actually measures, which critical parameters standard COAs omit, and what supplementary documentation to require before approving any SiC shipment.
Mehr lesen What the SiC Purity Certificate Actually Tells You — and What It Doesn’t

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