Refractory raw materials · Silicon-infiltration feed

Industrial silicon for infiltration

Aliases: RBSiC / SiSiC silicon-infiltration feed · Silicon feed for reaction-bonded silicon carbide

An industrial-silicon application family for RBSiC / SiSiC reaction bonding or silicon infiltration. Confirmed sizing, fines, Fe/Al/Ca and application-specific residuals, melting and infiltration behaviour must match the porous SiC-C body. This page is neither a separate chemical grade nor a stock claim.

Molten-silicon infiltration feed for RBSiC / SiSiCSilicon source for body carbon-silicon reactionApplication-grade control of residual silicon and infiltration behaviour

View grades and specifications

Product codeSI-INFILTRATION-FEED

Industry application1

Key indicatorsSi / Fe / Al / Ca · C / Ti / B / P / O / SiO₂ · size distribution / fines / moisture

Order boundaryQuotation and order confirmation

QUICK DECISION

Four answers before reading the technical detail

This section supports initial screening; final grade, addition and effects require operating conditions, formal documents and plant validation.

What it is

What it does

Molten-silicon infiltration feed for RBSiC / SiSiC
Silicon source for body carbon-silicon reaction
Application-grade control of residual silicon and infiltration behaviour

Where it fits

Controlled molten-silicon or vacuum-infiltration reaction after body drying/pre-treatment

Boundary not to miss

Mismatched silicon quantity, residuals, porosity, temperature or vacuum may cause incomplete infiltration, excessive residual silicon, unreacted carbon, cracking, distortion or performance variation

SELECTION BOUNDARY

Start with the selection boundary

This page is an application-grade RFQ entry for RBSiC / SiSiC infiltration. It is not ordinary aluminium-casting SI-METAL, SI-METAL-POWDER, microsilica, colloidal silica, SiC powder or polysilicon. A silicon-metal standard grade is only a chemistry-identity reference; sizing, residuals, melting/infiltration behaviour and body compatibility require a dedicated TDS, SDS/PSI, lot COA and process trials.

PRODUCT MANUFACTURING

Product manufacturing process

Silicon feed for infiltration is generally first made through the industrial-silicon industry route of electric-furnace carbothermic reduction, tapping and refining, casting and cooling, followed by lot identity confirmation, crushing and screening, fines control, application-grade inspection and packing for SiSiC/RBSiC infiltration. Actual smelting, refining and selection practices are defined by the producer and customer process; this page does not depict a Jinsheng-owned line.

01Verify quartz, reductants and auxiliary feeds, then batch to the actual industrial-silicon route
02Complete electric-furnace carbothermic reduction, tapping and refining, casting and controlled cooling
03After confirming feed lot chemistry and phase identity, crush and screen while controlling fines and foreign contamination
04Review sizing, surface condition, chemistry and lot consistency for infiltration use, retaining a representative sample
05Seal and moisture-protect the application-grade SKU with traceable TDS, SDS and lot COA

SPECIFICATIONS & PACKAGING

Grades, specifications, indicators and packaging

Specification selection must confirm product identity, guaranteed chemistry, sizing, form, packing, test method and order use together.

01Confirm the infiltration use, product system, supplier's formal SKU and feedstock production route
02Use the TDS to agree Si, Fe, Al, Ca and application-relevant trace elements, test methods and lot guarantees
03Fix supply form, size distribution, maximum size, fines proportion and the screening test basis
04Assess surface oxidation, moisture, foreign contamination and equipment-specific melting and infiltration trial requirements
05Approve use only after reviewing sealed pack, logistics, SDS, sampling plan, retained sample and lot COA

GRADES & SPECIFICATIONS

Grades, specifications, indicators and packaging

Supply specifications, packaging, lead time and quality documents are subject to the formal quotation and order confirmation.

Grade / family	Chemistry	Size and form	Packaging
Specification direction 01Industrial silicon for infiltrationConfirm grade, applicable standard and guaranteed values before quotation	Si / Fe / Al / CaConfirm in inquiry C / Ti / B / P / O / SiO₂Confirm in inquiry size distribution / fines / moistureConfirm in inquiry	Confirm against the addition method, equipment and order requirements	Confirm pack format, net weight and labels in the quotation and order

ORDER SPECIFICATION CONFIRMATION

What must be confirmed before this becomes an order specification

Supply specifications, packaging, lead time and quality documents are subject to the formal quotation and order confirmation.

01Confirm the product, grade, application and supply scope
02Fix guaranteed chemistry, sizing, form and packing in the quotation and order
03Agree sampling, test methods, acceptance rules and lot COA fields
04Confirm the required TDS, SDS/PSI, labels and delivery documents

SELECTION AND COMPARISON

Compare specification directions by indicators and operating conditions

Supply specifications, packaging, lead time and quality documents are subject to the formal quotation and order confirmation.

01Specification direction

Industrial silicon for infiltration

Compare the key indicators below, then confirm grade, guaranteed values, sizing and packing against the operating conditions.

Key indicators: Si / Fe / Al / CaC / Ti / B / P / O / SiO₂size distribution / fines / moisture
Size and form: Confirm against the addition method, equipment and order requirements
Packaging: Confirm in the quotation and order

INDUSTRY APPLICATION

Industry, furnace, material and addition point

Confirm the process position before method and quantity calculations; an application relationship for one furnace or material must not be copied to another.

Refractory producers

Controlled molten-silicon or vacuum-infiltration reaction after body drying/pre-treatment

Furnace / equipment: RBSiC / SiSiC body preparation, controlled molten-silicon or vacuum infiltration and subsequent heat-treatment equipment
Material / output: Porous SiC-C bodies designed for carbon content, open porosity, pore network and target residual silicon

APPLICATION METHOD

Application method and effect validation

SiSiC/RBSiC silicon infiltration is a reactive-infiltration process jointly determined by the product system and equipment. Design it around the porous SiC-C preform, free carbon and pore structure, silicon-feed sizing and delivery, the temperature-time-atmosphere or vacuum window, and off-gas safety, then validate residual silicon, reaction extent, porosity and performance on coupons and finished products. This page provides no fixed ratio, dose, recovery or effect value.

01Confirm the SiSiC/RBSiC product system, preform composition, free carbon, pore structure and target microstructure
02Review silicon-feed lot TDS, SDS and COA, then use screening, drying or another approved pretreatment to meet equipment conditions
03Select feeding, contact and loading methods, then run trials to establish temperature, time, atmosphere or vacuum and off-gas safety windows
04Complete melting, wetting, capillary infiltration and the silicon-carbon reaction under control without directly extrapolating trial conditions
05After controlled cooling, inspect residual silicon, formed SiC, unreacted carbon, porosity, dimensions and service-relevant properties, establishing approval and stop criteria

PROBLEM AND SOLUTION

From operating objective to effect verification

Each application explains the role, method, quantity principle and risk boundary; the final proposal is confirmed against operating conditions and lot documents.

Refractory producers

Controlled molten-silicon or vacuum-infiltration reaction after body drying/pre-treatment

Furnace / equipment: RBSiC / SiSiC body preparation, controlled molten-silicon or vacuum infiltration and subsequent heat-treatment equipment
Material / output: Porous SiC-C bodies designed for carbon content, open porosity, pore network and target residual silicon
Method: Confirm silicon-feed chemistry, sizing, fines and surface condition together with body carbon, open porosity, pore distribution, pre-treatment, temperature, atmosphere/vacuum and equipment; establish wetting, reaction, infiltration and cooling windows by trial.
Quantity determination: Build a material balance from body mass, open pore volume, reactive carbon, target SiC formation, target residual silicon and equipment loss; no fixed silicon-feed ratio is published across bodies or equipment.

Expected effects

In a matched process, supports silicon infiltration into pores and reaction with available carbon to form a new SiC-bonded structure

Limits and risks

Mismatched silicon quantity, residuals, porosity, temperature or vacuum may cause incomplete infiltration, excessive residual silicon, unreacted carbon, cracking, distortion or performance variation

STORAGE & SAFETY

Storage, handling and risk

Keep dry, clean and lot-segregated and prevent fines accumulation; wet feed must not enter high-temperature molten-silicon or infiltration equipment.
Molten silicon, vacuum, high temperature, brittle lump/granule and dust risks require equipment interlocks, form-specific SDS/PSI and plant procedures; this category page does not replace a process-safety assessment.

This section does not replace the company's final SDS/PSI or the plant safety procedure.

REFERENCE AND ORDER BOUNDARY

Use industry references to understand, then order documents to confirm

Supply specifications, packaging, lead time and quality documents are subject to the formal quotation and order confirmation.

DOCUMENTS & MEDIA

Images, TDS, SDS and COA

Document availability depends on the product, lot, destination market and order agreement.

TDS

Confirms product identity, guaranteed indicators, sizing, form and packing.

SDS / PSI

Confirms storage, handling, protection and market-specific safety information.

COA

Links a specific lot to test items, results, methods and issue information.

INDUSTRY TECHNICAL REFERENCES

Selected external reference material

The following items come from licensed public media or original producer websites and explain similar products or typical processes only. They are not Jinsheng photographs, TDS, SDS or lot COA and create no supply commitment.

Blank COA template

COA field template (not a certificate)

A blank structure for lot, chemistry, sizing, method, disposition and issue data. It contains no test result and cannot be used for delivery.

Jinsheng blank COA field template · 2026-08-14Open field template ↗

SOURCES

Public references and verification dates

GB/T 2881—2023 Silicon metal (silicon-feed chemistry reference) ↗Standard · 2026-08-21
Elkem reaction-bonded, silicon-infiltrated and nitrided SiC process overview ↗Manufacturer source · 2026-08-21

Public sources supplement general facts; they do not replace Jinsheng's formal product specification, TDS or lot COA.

INQUIRY PREPARATION

Prepare these operating conditions for a more precise technical response

Please provide the specification, quantity, destination, and contact information.

Already includedSI-INFILTRATION-FEEDIndustrial silicon for infiltration

01Target industry, steel grade or casting material
02Furnace type, equipment, melt weight and current operating practice
03Measured chemistry, target chemistry and permitted residuals
04Planned addition point, temperature, slag and stirring conditions
05Current product, addition, recovery or operating-issue record
06Required size, form, packaging, quantity and destination
07Available melt analysis, microscopy, photographs or trial results

TECHNICAL AND QUOTATION CONSULTATION

Send the operating conditions for human review

Domestic inquiries are handled by the Domestic Sales Department and international inquiries by the International Sales Department. Price, availability and lead time are confirmed for each inquiry based on specification, quantity and delivery location.