The crystallization,microstructure,

The crystallization,microstructure,microhardnessandtheoreticalmachinabilityhavebeeninvestigatedbyDTA,XRD,SEMand
Microhardness Indenterofresultingglass-ceramics.TwodistinctcrystallizationexothermsintheDTAcurveareobservedandresolved.
The firstpeakcorrespondstotheinitialformationofpotassiumfluorophlogopiteandthesecondisduetotheformationofbarium
fluorophlogopite. Theactivationenergyforprecipitationofeachcrystallinephasehasbeenevaluated,andthecrystallizationmechanism
has beenstudied.DTAanalyseswereconductedatdifferentheatingratesandtheactivationenergywasdeterminedgraphicallyfrom
Kissinger andOzawaequation.Theaverageactivationenergyiscalculatedas276KJ/molforthefirstand366KJ/molforthesecond
crystallization peak.TheAvramiexponentforfirstandsecondcrystallizationpeaktemperaturedeterminedbyAugisandBennett
method isfoundtobe3and3.9,respectively.Theresultsindicatethatthegrowthofmicaisatwoandthreedimensionalprocess,
controlled bythecrystal-glassinterfacereaction.TheVicker’shardnessdecreasedsteadilyatintermediateheattreatmenttemperature
with theformationofbariumandpotassiumfluorophlogopitephase,butthedecreaseinhardnessismorerapidathighertemperature
with thedevelopmentofaninterconnected‘houseofcards’microstructure.
& 2012 PublishedbyElsevierLtdandTechnaGroupS.r.l.

ผลลัพธ์ (ไทย) 1:

ตกผลึก ต่อโครงสร้างจุลภาค microhardnessandtheoreticalmachinabilityhavebeeninvestigatedbyDTA, XRD, SEMandMicrohardness Indenterofresultingglass-ceramics.TwodistinctcrystallizationexothermsintheDTAcurveareobservedandresolvedFirstpeakcorrespondstotheinitialformationofpotassiumfluorophlogopiteandthesecondisduetotheformationofbariumfluorophlogopite Theactivationenergyforprecipitationofeachcrystallinephasehasbeenevaluated, andthecrystallizationmechanismมี beenstudied DTAanalyseswereconductedatdifferentheatingratesandtheactivationenergywasdeterminedgraphicallyfromAndOzawaequation.Theaverageactivationenergyiscalculatedas276KJ/molforthefirstand366KJ/molforthesecond คิสซินเจอร์สูงสุดตกผลึก TheAvramiexponentforfirstandsecondcrystallizationpeaktemperaturedeterminedbyAugisandBennettวิธี isfoundtobe3and3.9 ตามลำดับ Theresultsindicatethatthegrowthofmicaisatwoandthreedimensionalprocessควบคุม bythecrystal-glassinterfacereaction TheVicker'shardnessdecreasedsteadilyatintermediateheattreatmenttemperatureมี theformationofbariumandpotassiumfluorophlogopitephase, butthedecreaseinhardnessismorerapidathighertemperatureมีต่อโครงสร้างจุลภาคของ thedevelopmentofaninterconnected'houseofcardsและ 2012 PublishedbyElsevierLtdandTechnaGroupS.r.l

ผลลัพธ์ (ไทย) 3:

การตกผลึก , โครงสร้างจุลภาค microhardnessandtheoreticalmachinabilityhavebeeninvestigatedbydta , XRD , semand
ความแข็ง indenterofresultingglass เซรามิก twodistinctcrystallizationexothermsinthedtacurveareobservedandresolved .

firstpeakcorrespondstotheinitialformationofpotassiumfluorophlogopiteandthesecondisduetotheformationofbarium fluorophlogopite .ได้ทำการศึกษา theactivationenergyforprecipitationofeachcrystallinephasehasbeenevaluated andthecrystallizationmechanism
, .
dtaanalyseswereconductedatdifferentheatingratesandtheactivationenergywasdeterminedgraphicallyfrom คิสซินเจอร์ andozawaequation . theaverageactivationenergyiscalculatedas276kj / molforthefirstand366kj / molforthesecond
ยอดการตกผลึกtheavramiexponentforfirstandsecondcrystallizationpeaktemperaturedeterminedbyaugisandbennett
วิธี isfoundtobe3and3.9 ตามลำดับ theresultsindicatethatthegrowthofmicaisatwoandthreedimensionalprocess
, ควบคุม bythecrystal glassinterfacereaction . thevicker'shardnessdecreasedsteadilyatintermediateheattreatmenttemperature
theformationofbariumandpotassiumfluorophlogopitephase ด้วย ,butthedecreaseinhardnessismorerapidathighertemperature
กับ thedevelopmentofaninterconnected'houseofcards'microstructure .
& 2012 publishedbyelsevierltdandtechnagroups . .