Mfiridwuma mu nsunsuansoɔ a ɛko tia refractories no yɛ nea ɛnam ahoɔden a ɛyɛ flexural so titire, berɛ a nkɛntɛnsoɔ a ɛwɔ fracture toughness mu no sua. wɔ ɔkwan foforɔ so no, wɔ mfiridwuma mu nsunsuansoɔ a wɔko tia ho no, refractories a ɛwɔ flexural ahoɔden a ɛkyɛn so no ne ɔkwan pa a wobɛfa so anya ɔsom adwuma a ɛyɛ papa.
Wɔ tebea a ɛma mpaapaemu a ɛkɔ so brɛoo no trɛw no ase no, nneɛma a ɛma nneɛma yɛ hyew a ɛyɛ hyew a ɛko tia ɔhyew a ɛwɔ nneɛma mu no yɛ nea ɛnam ahoɔden a ɛyɛ flexural ahoɔden ne linear ntrɛwmu nsusuwii. e modulus ne fracture adwuma so titiriw na WOF nkɛntɛnso no da adi titiriw wɔ parameters{1}} parameter rst no mu kyerɛ parameters a ɛfa stable fracture{{2} ho no, wobetumi ahu IT no fi equanul} no fi equanUfifo no mu {{3} no{{3} no {{3} no mu {{3} E, dodow a mpaapaemu no yɛ adwuma kɛse no, dodow no ara na WOF kɛse no, dodow no ara na rst value, ɔhyew nsonsonoe kɛse a ɛho hia ma mpaapaemu a ɛtrɛw, ne mpaapaemu a ɛyɛ den.
Wobetumi de flexural ahoɔden ne parameters adi dwuma de ama mfiridwuma mu nkɛntɛnso a ɛko tia ne ɔhyew a ɛyɛ hu a ɛko tia refractories.
Wɔ saa kwan yi so no, bere tenten a flexural ahoɔden ne parameter center centre bo a ɛyɛ refractory betumi adi so na wɔayɛ no yiye no, mfiridwuma mu nsunsuanso a ɛko tia (crack generation) ne thermal shock resistance (crack generation and propagation) of refractory betumi ayɛ papa. Enti, refuctory a ɛne no hyia no betumi ayɛ nsakrae wɔ ɔsom tebea horow a wɔaka ho asɛm wɔ atifi hɔ{1}} enti, nea edidi so yi mu no, nsusuwii a ɛwɔ akyi no te sɛ nea wɔayɛ no sɛnea wɔayɛ no sɛnea wɔayɛ no sɛnea wɔayɛ no sɛnea wɔayɛ no sɛnea wɔayɛ no sɛnea wɔayɛ no sɛnea ɛbɛyɛ a wɔbɛma nneɛma a ɛwɔ akyi no ayɛ adwuma
Esiane sɛ nkɛntɛnso a ɛwɔ nkɔso a ɛba wɔ ɔhyew a ɛyɛ hu a ɛko tia refractory no mu no korɔn sen nea ɛwɔ mfiridwuma mu a ɛko tia no nti, ɛsɛ sɛ RST anohyeto.
Sɛ yɛhwɛ abɔde mu nneɛma a, wobu no sɛ mpaapaemu ntiantiaa betumi ama ahoɔden no atu mpɔn, bere a mpaapaemu atenten bɛma rigidity no so atew, na mpaapaemu abien no nyinaa betumi ayɛ adwennwen ne mpaapaemu a ɛkorɔn. Enti, sɛnea fracture mechanics nhyehyɛe no te, a wɔde ka nhyehyɛe su a ɛwɔ reffraries mu no, wobetumi agye akwan horow a ɛho hia no atom de ama mfiridwuma mu ahoɔden a ɛko tia ne ɔhyew a ɛyɛ hu a ɛwɔ refractors no mu no ayɛ yiye}}}}}}
(1) Ɛsɛ sɛ wɔpaw nneɛma a ɛwɔ linear ntrɛwmu anaa nneɛma a wɔde yɛ nneɛma a ɛyɛ mmerɛw a ɛwɔ shrinkage a ɛtra hɔ daa bere a wɔreto tuo anaa wɔde redi dwuma no na ama ɔhyew mu nhyɛso so atew.
(2) Ɛdenam optimizing particle distribution ne manufacturing nhyehyɛe, porosity of refractory betumi atew na flexural ahoɔden betumi atu mpɔn.
(3) Wɔayɛ microstructure a eye sen biara no sɛnea ɛbɛyɛ a ɛremma mpaapaemu no ntrɛw na ɛde krak a ɛtrɛw no tumi di dwuma, sɛnea ɛbɛyɛ a mpaapaemu afiri no bɛma atu mpɔn, titiriw sɛnea ɛbɛyɛ a mpaapaemu no bɛdan mpaapaemu no.
(4) Sɛnea ɛbɛyɛ a wɔbɛdannan mpaapaemu no, ɛho hia sɛ wɔde aggregates a ne kɛse nyinaa. di dwuma kɛse-size strong aggregate no nso bɛdan mpaapaemu no na ama adwumayɛ a intergranular crack. wɔ asɛm a ɛfa transgranular crack characteristics ho, sintering mmom sen sɛ ɛbɛ sintering aggregate betumi ayɛ krak resistance, a ɛbɛdannan no{wO{
(5) Sɛnea ɛbɛyɛ a wɔbɛma krak bifurcation anya nkɔso no, ebia ɛho behia sɛ matrix fã no nhyehyɛe no de nneɛma a ɛsono ne / anaa anisotropic linear ntrɛwmu nsusuwii ahorow di dwuma na ama ɔhyew ntrɛwmu a ɛne ne ho nhyia no ayɛ kɛse, a ebetumi ayɛ microcracks dodow kɛse. nanso, ɛsɛ sɛ wɔhwehwɛ kari pɛ a eye sen biara na ama wɔakwati microcrack coalescence.
