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As-grown sapphire boule 副本 副本

As-grown sapphire boule 副本 副本 Featured Image
  • As-grown sapphire boule 副本 副本
  • As-grown sapphire boule 副本 副本
  • As-grown sapphire boule 副本 副本

Short Description:

An as-grown sapphire boule is a single-crystal sapphire ingot produced directly from the growth furnace and supplied before secondary processing such as orientation, slicing, or polishing. It offers exceptional hardness, chemical inertness, high thermal stability, and broad optical transparency from UV to IR. These properties make it an ideal starting material for downstream fabrication into windows, wafers/substrates, lenses, and protective covers. Typical end-uses include LED and laser components, infrared/visible windows, wear-resistant watch and instrument faces, and substrates for RF, sensor, and other electronic devices. Boules are commonly graded by crystal orientation, diameter/length, dislocation or defect density, color uniformity, and inclusions, with optional services available for orientation and cutting to customer specifications.


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    • Features

    Ingot quality

    ingot size

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    Features and Benefits

    1.High melting point: The melting point of sapphire fiber is as high as 2072℃, which makes it stable in high temperature environment.

    2.Chemical corrosion resistance: sapphire fiber has excellent chemical inertness and can resist the erosion of a variety of chemical substances.

    3.High hardness and friction resistance: the hardness of sapphire is second only to diamond, so sapphire fiber has high hardness and wear resistance.

    4.High energy transmission: Sapphire fiber can ensure high energy transmission, while not losing the flexibility of the fiber.

    5. Good optical performance: It has good transmittance in the near infrared band, and the loss mainly comes from the scattering caused by crystal defects existing inside or on the surface of the fiber.

    Preparation process

    Sapphire fiber is mainly prepared by laser heating base method (LHPG). In this method, sapphire raw material is heated by laser, which is melted and pulled to make optical fiber. In addition, there is the use of fiber core rod, sapphire glass tube and outer layer combination preparation of sapphire fiber process, this method can solve the whole body material is sapphire glass is too brittle and can not achieve long-distance drawing problems, while effectively reduce the Young's modulus of sapphire crystal fiber, greatly increase the flexibility of fiber, to achieve large length sapphire fiber mass production.

    Fiber type

    1.Standard sapphire fiber: The diameter range is usually between 75 and 500μm, and the length varies according to the diameter.

    2.Conical sapphire fiber: The taper increases the fiber at the end, ensuring high throughput without sacrificing its flexibility in energy transfer and spectral applications.

    Main application areas

    1.High temperature fiber sensor: The high temperature stability of sapphire fiber makes it widely used in the field of high temperature sensing, such as high temperature measurement in metallurgy, chemical industry, heat treatment and other industries.

    2.Laser energy transfer: High energy transmission characteristics make sapphire fiber have potential in the field of laser transmission and laser processing.

    3.Scientific research and medical treatment: Its excellent physical and chemical properties also make it used in scientific research and medical fields, such as biomedical imaging.

    Parameter

    Parameter Description
    Diameter 65um
    Numerical Aperture 0.2
    Wavelength Range 200nm - 2000nm
    Attenuation/ Loss 0.5 dB/m
    Maximum Power Handling 1w
    Thermal Conductivity 35 W/(m·K)

     XKH has a team of leading designers and engineers with deep expertise and rich practical experience to accurately capture the unique needs of customers, from the length, diameter and numerical aperture of the fiber to special optical performance requirements, which can be customized. XKH uses advanced computational simulation software to optimize the design scheme many times to ensure that each sapphire fiber can accurately match the actual application scenario of customers, and achieve the best balance between performance and cost.

    Detailed Diagram

    Sapphire fiber 1
    Sapphire fiber 2
    Sapphire fiber 3
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    • Optical-Grade Crystals with Responsible In-House Scrap Management

    All our sapphire boules are manufactured to optical grade, ensuring high transmission, tight homogeneity, and low inclusion/bubble and dislocation densities for demanding optics and electronics. We control crystal orientation and birefringence from seed to boule, with full lot traceability and consistency across runs. Dimensions, orientations (c-, a-, r-plane), and tolerances can be customized to your downstream slicing/polishing needs.
    Importantly, any material that falls short of specification is processed entirely in-house through a closed-loop workflow—sorted, recycled, and disposed of responsibly—so you get reliable quality without handling or compliance burdens. This approach reduces risk, shortens lead times, and supports your sustainability goals.

    Ingot Weight Band (kg) 2″ 4″ 6″ 8″ 12″ Notes
    10–30 Suitable Suitable Limited/possible Not typical Not used Small-format slicing; 6″ depends on usable diameter/length.
    30–80 Suitable Suitable Suitable Limited/possible Not typical Broad utility; occasional 8″ pilot lots.
    80–150 Suitable Suitable Suitable Suitable Not typical Good balance for 6–8″ production.
    150–250 Suitable Suitable Suitable Suitable Limited/R&D Supports initial 12″ trials with tight specs.
    250–300 Suitable Suitable Suitable Suitable Limited/tightly specified High-volume 8″; selective 12″ runs.
    >300 Suitable Suitable Suitable Suitable Suitable Frontier-scale; 12″ feasible with strict uniformity/yield control.

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