Silicon sits at the heart of the modern energy industry. It turns sunlight into electricity inside photovoltaic modules, reinforces the alloys and ceramics that keep power equipment running, and anchors countless research programs in batteries, semiconductors, and advanced materials. At Eata Silicon, we focus on the fundamental materials behind all of this work, delivering consistent quality, transparent specifications, and grades suited to both laboratory research and industrial production.
This page brings together our three core product lines: Silicon Raw Materials, Photovoltaic Silicon Materials, and Inorganic Silicon Materials. Browse the product list below, or read on for a closer look at what each category covers and how to select the right grade for your process.
Browse Our Products
Polycrystalline silicon — the starting point for advanced silicon processing.
Every silicon value chain begins with the element itself. We supply silicon metal and silicon powder (CAS 7440-21-3) across a wide spectrum of purities and particle sizes, from metallurgical grades used in alloying and chemical synthesis to high-purity material destined for electronics research and sputtering targets. Whatever the grade, each lot is supported by a certificate of analysis covering purity, trace elements, and particle size, so your incoming inspection matches our outgoing QC.
Typical forms and grades:
- Silicon metal lumps and granules in standard industrial grades (553, 441) for aluminum alloys, silicones, and silane production
- Micronized silicon powder milled to controlled particle size distributions for refractories, technical ceramics, and battery anode research
- High-purity silicon from 3N to 6N for electronic, optical, and laboratory applications
- Quartz and silica feedstock for customers who need the upstream oxide alongside the refined element
Quartz feedstock, silicon metal lumps, and fine silicon powder.
Solar manufacturing is unforgiving about feedstock quality. For wafer and cell producers, we offer solar-grade polysilicon in chunk and granular form at 6N purity and above, suitable for Czochralski single-crystal pulling as well as multicrystalline ingot casting. Stable resistivity and low metal contamination help protect ingot yields and, ultimately, cell efficiency.
What we supply to the PV chain:
- Solar-grade polysilicon chunks for crucible loading and CZ crystal growth
- Granular polysilicon for continuous charging and high-throughput ingot production
- High-purity quartz materials for crucibles and other crystal-growth consumables
- Research feedstock for ingot, brick, and wafer development lines
Whether you are qualifying a new ingot furnace or scaling up a wafer line, we can align polysilicon specifications — resistivity range, dopant type, size distribution, and packaging — with your furnace design and process window.
Polysilicon chunks and granules ready for ingot production.
Silicon wafers — the destination of every solar-grade feedstock.
Beyond the element itself, silicon forms a family of inorganic compounds prized for hardness, thermal stability, and chemical resistance. Eata Silicon supplies the powders and specialty materials behind refractories, abrasives, technical ceramics, and high-performance construction products.
- Silica fume (microsilica) — ultrafine SiO₂ for high-strength concrete, grouts, and refractory castables
- Silicon carbide (SiC, CAS 409-21-2) — black and green grades from coarse grits to submicron powders, for abrasives, kiln furniture, and wear-resistant components
- Silicon nitride (Si₃N₄, CAS 12033-89-5) — alpha-phase powders and sintered ceramic parts for bearings and high-temperature service
- High-purity quartz materials — for fused quartz, quartzware, and semiconductor-adjacent applications
Silicon carbide powders and dense ceramic plates.
Silicon nitride ceramics built for heat and wear.
Representative Products at a Glance
The table below summarizes frequently requested materials. Many additional purities, particle cuts, and packaging options are available on request.
| Product |
Category |
Typical Grade / Purity |
Common Forms |
Typical Applications |
| Silicon Metal |
Silicon Raw Materials |
553 / 441 grades, ≥98.5% Si |
Lumps, granules |
Aluminum alloys, silicones, chemical feedstock |
| Micronized Silicon Powder |
Silicon Raw Materials |
≥99% Si |
Powder, mesh to micron sizes |
Refractories, ceramics, anode research |
| High-Purity Silicon |
Silicon Raw Materials |
3N–6N |
Chunks, powder, targets |
Electronics, optics, R&D |
| Solar-Grade Polysilicon |
Photovoltaic Silicon Materials |
≥6N |
Chunks, granules |
CZ ingots, multicrystalline casting |
| High-Purity Quartz |
Photovoltaic / Inorganic |
≥99.9% SiO₂ |
Sand, powder, crucible material |
Quartz crucibles, quartzware |
| Silica Fume (Microsilica) |
Inorganic Silicon Materials |
85–97% SiO₂ |
Densified / undensified powder |
High-performance concrete, refractories |
| Silicon Carbide (SiC) |
Inorganic Silicon Materials |
97–99%+ |
Grits, powders, ceramic parts |
Abrasives, kiln furniture, wear parts |
| Silicon Nitride (Si₃N₄) |
Inorganic Silicon Materials |
≥99%, high alpha phase |
Powder, sintered components |
Bearings, cutting tools, high-temp parts |
Choosing the Right Silicon Material
A few practical starting points when matching a material to your process:
- Photovoltaic ingot growth: start with solar-grade polysilicon at 6N or higher, and specify resistivity and dopant to match your target wafer type.
- Metallurgical and chemical use: standard silicon metal grades (553, 441) balance cost and purity; share your trace-element limits for iron, aluminum, and calcium.
- Refractories and ceramics: particle size distribution often matters more than headline purity — ask about our milled and classified powders.
- Research programs: we welcome small-quantity orders, customized purities, and non-standard particle cuts.
Custom Silicon Materials and Services
Off-the-shelf specifications do not fit every process. Eata Silicon supports custom work across all three product lines: tailored purity levels, engineered particle size distributions, specialized packaging from sealed laboratory pouches to bulk containers, and batch sizes ranging from gram-scale research quantities to full industrial volumes. If the specification you need is not listed on this page, send us your target parameters and our team will help you develop a material that fits.
Contact us with your application or specification — we will help you find, or create, the right silicon material for the job.
For Research or Industrial Raw Materials, Not For Personal Medical Use!
