EN
In the field of high-end alumina powders, whether a raw material can simultaneously bridge two high-barrier sectors—military defense and semiconductor electronics—depends on its comprehensive strength in purity, low sodium content, and particle size control. The AL-10B low-sodium reactive calcined α-alumina produced by Shandong Greatsun Aopeng Group Environmental New Materials Co., Ltd. is precisely such a specialized raw material that spans both ballistic ceramic armor plates and 995 granulated powder for semiconductor electronic components.
Ballistic Ceramics: From Powder to NIJ Level III Protection
AL-10B achieves an Al₂O₃ purity of 99.78%, with sintered ceramic density ≥ 3.9 g/cm³, hardness ≥ HRA 88, and elastic modulus > 317 GPa. At the moment of bullet impact, the high-hardness ceramic surface deforms and shatters the projectile, while the high modulus rapidly disperses stress. Its Na₂O content is only 0.033%, far below the 0.05% industry threshold, effectively suppressing abnormal grain growth during high-temperature sintering and safeguarding impact toughness at ≥ 2.2 J/cm². The narrow particle size distribution (D₅₀ = 1.6 μm, SPAN = 1.13) ensures uniform large-plate molding and stable sintering shrinkage, significantly boosting mass-production yields. Verified by customer live-fire testing, it provides protection against GA141 Level 5 and NIJ Level III (AK47-class threats) standards.
Semiconductor 995 Granulated Powder: A Reliable Cornerstone for Electronic Components
AL-3GA/AL-10B is also the raw material choice for 995 granulated powder (99.5% alumina) used in semiconductor electronic components. The semiconductor sector is extremely sensitive to alkali metal content in alumina powders—Na⁺ ions undergo ionic migration under high temperatures and electric fields, leading to device leakage current and performance degradation. AL-10B's ultra-low sodium characteristic (0.033%) eliminates this risk from the source. Its reactive sintering characteristics allow 995 ceramics to densify at lower temperatures, producing fine, uniform grain structures with low dielectric loss and high insulation resistance. It is suitable for IC packaging substrates, power device ceramic housings, and high-frequency insulating components. After granulation, it offers excellent flowability and high green body strength, adapting smoothly to dry pressing and isostatic pressing molding processes.
Product Advantages
○ Dual-Track Verification: Simultaneously proven through ballistic ceramic live-fire testing and semiconductor component application trials.
○ Stable Low Sodium: Na₂O ≤ 0.04% with batch-to-batch controllability, eliminating grain boundary weakening and ionic migration.
○ Narrow Particle Size Distribution: SPAN = 1.13, delivering uniform molding and stable sintering.
○ In-House Production Lines: Calcined in Shandong Greatsun Aopeng's own tunnel kilns, guaranteeing bulk supply and short lead times.
Greatsun Aopeng AL-10B—One raw material with dual applications, providing a stable raw material guarantee for high-end ceramics from military defense to chips and displays. Contact us for sample testing!
