What is Beta Bismuth Oxide?
Beta Bismuth Oxide
Beta Bismuth Oxide is the beta-phase Bi2O3 member of the Bismuth Oxide family, shown as a bright-yellow powder. Confirm ceramic and optical behavior for the selected grade and application.
Technical owner: Aurexene Materials Engineering Team
What It Is Not
- Beta Bismuth Oxide is not alpha or delta bismuth oxide; the beta designation identifies a distinct Bi2O3 phase.
When Not to Use It
- Do not use Beta Bismuth Oxide when its phase cannot be retained through the intended temperature cycle or when another Bi2O3 phase is specified.
Intrinsic Screening Summary
- Identity screen
- Bi2O3; Bismuth oxide particles
- Intrinsic feature
- Qualify beta identity and retained fraction by XRD, then record temperature, time, atmosphere, and cooling history; a supplied-phase label does not prove the phase remains after processing.
- Material-level integration
- Record incoming and post-process XRD together with temperature, dwell, atmosphere, and cooling history. The beta label is useful only when the intended phase fraction is confirmed after the material's thermal history.
Application Fit
Material Identity & Specification Status
Approved values for Particle size, Density, Purity, and Packaging are not published; confirm them during quotation or sample review.
| Property | Value |
|---|---|
| Composition | Bi2O3 |
| CAS / identity | 1304-76-3 |
| Morphology | Bismuth oxide particles |
| Storage | Dry sealed container |
Why It Works
| Structure | Function | Mechanism |
|---|---|---|
| Beta-phase Bi2O3 powder with catalog identity and owned appearance evidence. | A phase-specific branch for programs that explicitly require beta rather than incompletely specified Bi2O3. | Qualify beta identity and retained fraction by XRD, then record temperature, time, atmosphere, and cooling history; a supplied-phase label does not prove the phase remains after processing. |
Compare Material Routes
| Material / Route | Decision Boundary |
|---|---|
| Delta Bismuth Oxide | Beta Bismuth Oxide is the beta-phase branch with owned bright-yellow powder appearance evidence and a distinct phase-retention question. Delta Bismuth Oxide requires an identified stabilized composition or high-temperature phase route; the two labels must not be substituted without composition and XRD evidence. |
Technical Guides
| Technical Guide | Summary |
|---|---|
| How to Distinguish Bismuth Oxide Phases and Ca-Doped Bi2O3 | A material-native family guide that separates Bismuth Oxide as the Bi2O3 gateway, alpha/beta/delta phase nodes, Ca-Doped Bismuth Oxide as a modified functional route, and non-Bi2O3 compounds outside the phase selector. |
| How Bismuth Oxide Additions Affect Liquid-Phase Sintering and Grain-Boundary Formation | How Bismuth Oxide Additions Affect Liquid-Phase Sintering and Grain-Boundary Formation — a method-conditioned engineering guide for Varistor & Functional Ceramic Sensors covering structure-function behavior at the material, interface, and finished-system boundary, process limits, validation, and qualification boundaries. |
Documents & Inquiry
Document access follows the current approval state. Unapproved or unavailable files route to a document request instead of a public download.
Technical Data Sheet
Request required
Safety Data Sheet
Request required
Grade, Sample & Qualification Support
The Aurexene Materials Engineering Team can review the required form, host system, formulation or process, target, sample quantity, volume and timeline, and the grade-specific evidence needed before qualification.
Review Lab Capabilities for sample evaluation and qualification support, or Production Capabilities for scale-up, quality, documentation, and supply support.
Request Beta Bismuth Oxide Sample / Qualification Review